Download Lectures on Biostatistics (1971). Corrected and searchable version of Google books edition
Download review of Lectures on Biostatistics (THES, 1973).
chiropractor
We all know that chiropractors feel pretty desperate, after their job has been revealed as baseless (much more information at ebm-first). Nonetheless it was very surprising when I was alerted by Twitter to the fact that the London Chiropractors were claiming to have been chosen by UCL as a "Centre of Excellence".
That was the heading in the whole page devoted to crowing about this designation. The page, as it was on18th April, can be seen on freezepage.com. They even boast about our 21 Nobel prizewinners, as though they had endorsed chiropractic.
"London Chiropractor has recently been designated as a “Centre of Excellence” by University College London. The University is among the world’s leading universities as can be seen by its ranking in a variety of performance areas. Twenty-one Nobel prizewinners have come from the University’s community".
The triumphalist crowing goes on
"The designation of London Chiropractor as a Centre of Excellence is something that we are sincerely proud of. It distinguishes our clinic while providing impetus to carry on with our multi-disciplinary and evidence based treatment strategies while looking for new ways in which to improve on all aspects of our clinic at the same time and in a continuous manner."
But chiropractic is undoubtedly in deep trouble, after more that 600 complaints were submitted to the General Chiropractic Council (GCC). The GCC was forced to renounce what has always been a central myth of chiropractic, the "subluxation". The fact that most of the complaints have been rejected has revealed huge deficiencies in the GCC (some of which it recently admitted). It also reveals the uselessness of the Council for Health Regulatory Excellence (CHRE).which is meant to supervise them. More details at quackometer, Chiropractors at War with their Regulator, the GCC.
In the words of Richard Brown (president of the BCA) himself,
"The BCA sued Simon Singh personally for libel. In doing so, the BCA began one of the darkest periods in its history; one that was ultimately to cost it financially,"
Needless to say, chiropractors are trying to cash in on the Olympic games, sadly, with a little success. I suppose that invoking UCL. was part of that attempt. Like so many of chiropractors’ attempts to defend themselves, it misfired badly.
The inspection of evidence that followed the attempt by the British Chiropractic Association (BCA) to sue Simon Singh showed that he was entirely justified to describe many of their treatments as “bogus” and “without a jot of evidence”.
A quick email to the UCL authorities quickly determined that the claimed endorsement was not true. Attempting to access this page now leads to “page not found". The page vanished on Sunday 22nd April, and a near identical page for the Broadgate Spine and Joint Clinic had already vanished on Friday 20th April. While it is true that two surgeons from UCL’s Institute of Sports Medicine have worked in the same building, they neither use chiropractic nor endorse it.
I’m assured that the alleged endorsement never happened. London Chiropractors won’t say where it came from. It seems that it was simply made up. I think that’s called a lie. I presume it is a sign of the desperation of chiropractors.
Follow-up
The mainstream media eventually catch up with bloggers. BBC1 TV (Wales) produced an excellent TV programme that exposed the enormous degree validation scam run by the University of Wales. It also exposed the uselessness of the Quality Assurance Agency (QAA). Both these things have been written about repeatedly here for some years. It was good to see them getting wider publicity.
Watch the video of the programme (Part 1, and Part 2) "Week In Week Out – University Challenged." “The programme examines how pop stars and evangelical Christians are running colleges offering courses validated by the University of Wales.” (I make a brief appearance, talking about validation of degrees in Chinese Medicine).
In October 2008 I posted Another worthless validation: the University of Wales and nutritional therapy. With the help of the Freedom of Information Act, it was possible to reveal the mind-boggling incompetence of the validation process used by the University of Wales.
McTimoney College of Chiropractic
The Chiropractic “degrees” from the McTimoney College of Chiropractic are also validated by the University of Wales by an equally incompetent, or perhaps I should say bogus, procedure. More details can be found at The McTimoney Chiropractic Association would seem to believe that chiropractic is “bogus”, and in a later post, Not much Freedom of Information at University of Wales, University of Kingston, Robert Gordon University or Napier University.
Andy Lewis has also written about chiropractic in The University of Wales is Responsible for Enabling Bogus* Chiropractic Claims to be Made.
Sadly the BBC programme did not have much to say about these domestic courses, but otherwise it was excoriating. In particular it had extensive interviews with Nigel Palastanga, whose astonishing admission that courses were validated withour seeing what was taught on them was revealed here two years ago. After that revelation, the vice-chancellor of UoW, Marc Clement BSc PhD CEng CPhys FIET FInstP, promoted Palastanga to be pro-vice-chancellor in charge of Learning, Teaching and Enhancement (I know, you couldn’t make it up).
In the documentary Palastanga said
"It’s a major business. We earn a considerable amount of money."
That was obvious two years ago, but it’s good to hear it from the horse’s mouth.
After a section that revealed a bit about what goes on at two very fundamentalist bible colleges which gave University of Wales degrees, A. C. Grayling commented thus.
"They are there to train advocates for the biblical message and that is absolutely not, by a very very long chalk, what a university should be doing.. . . A respectable British Higher education institution like the University of Wales shouldn’t be touching them with a bargepole."
Undaunted, Palastanga responded
“That’s his opinion. I would say they are validated to the highest standards. They match what are called QAA benchmark. We have serious academics looking at them, and their academic standards are established at the very highest level.”
And if you believe that, you will truly believe anything.
You can download here one of many moderator’s reports obtained under the Freedom of Information Act. This one is for the BSc (Hons) Chiropractic. It is entirely typical of theuncritical boxticking approach to validation, Nowhere does it say "subluxation is nonsense", though even the GCC now admit that.
Traditional Chinese Medicine
The University of Wales validates several courses in what almost everyone but them classifies as quackery. As well as chiropractic and “nutritional therapy”, there is herbalism. For example a course at a college in Barcelona issues University of Wales degrees in Traditional Chinese medicine, a subject that is a menace to public health.. I was asked to comment on the course, and on a bag of herbs that the presenter had been sold to treat depression.
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Radix Bupleuri Chinensis
Radix Angelicae Sinensis Radix Paeoniae Lactiflorae Rhizoma Atractylodis Macrocephalae Sclerotium Poriae Cocos Radix Glycyrrhizae Uralensis Cortex Moutan Radicis (Paeonia Suffruticosa) Fructus Gardeniae Jasminoidis Herba Menthae Haplocalycis Zingiber officinale rhizome-fresh |
 Ingredients of a custom mixture. |
There is no good evidence that any of the ingredients help depression, in fact next to nothing is known about most of them, apart from liquorice and ginger. Swallowing them would be rather reckless. They fall right into the description of any herbal medicine, in the Patients’ Guide, "Herbal medicine: giving patients an unknown dose of an ill-defined drug, of unknown effectiveness and unknown safety. "
Of the degrees, I said
"There’s no evidence that it [the herbs] does you any good. It may be dangerous because you have no idea of the dose. Degrees in Chinese Medicine consist of three years spent memorising myths and pre-scientific, er, untruths. That isn’t a degree, it’s a travesty."
Palastanga. responded
"We’ve had long debates in the Health Committee about where we would draw the line about what we validate. They have to demonstrate to us that there is some scientific basis for the practice, that there is an established curriculum, that there is an established safe practice."
The presenter asked him "So you are confident that Chinese medicine works? Palastanga replied
" I didn’t say that. I said that there is evidence that it does work . . We are trying to enforce these professions to undertake effective research."
That statement is simply not true, as shown by the response of the validation committee to the application for validation of the course in “Nutritional Therapy” at the Northern College of Acupuncture, documented previously. The fact of the matter is that the validation proceeded without looking at what was actually taught, and without even a detailed timetable of lectures. The committee looked only at the official documents presented to it and was totally negligent in failing to discover some of the bizarre beliefs of the people who were giving the course.
Palastanga went on to raise the usual straw man argument, about how little regular medicine is based on good evidence (though admittedly that is certainly true in his own field -he is a physiotherapist).
Fazley International College Kuala Lumpur
This business college in Kuala Lumpur offered University of Wales degrees. Its 32-year old president is a part time pop star with impressive looking qualifications
The presenter pointed out that
" His doctorate and his MBA were awarded in that citadel of education, Cambridge. Here he is, pictured at the city’s prestigious business school. He was there for all of four days and walked away with a doctorate. But the degree was not from the University of Cambridge, but from the now defunct "European Business School Cambridge". It never had the right to award degrees."
Neither the University of Wales nor the QAA had noticed this unfortunate fact. Once the TV team had done their job for them, the UoW withdrew support. though, as of 15 November 2010, that is not obvious from Fazley’s web site.
Mr (not Dr) Fazley seemed rather pleased about how students were attracted by the connection with the Prince of Wales. The fact that he is Chancellor of the University of Wales seems not inappropriate, given the amount of quackery they promote.
Quality Assurance Agency (QAA)
In 2007, I wrote, in Nature (see also here),
“Why don’t regulators prevent BSc degrees in anti-science? The Quality Assurance Agency for Higher Education (QAA) claims that “We safeguard and help to improve the academic standards and quality of higher education in the UK.” It costs taxpayers £11.5 million (US$22 million) annually. It is, of course, not unreasonable that governments should ask whether universities are doing a good job. But why has the QAA not noticed that some universities are awarding BSc degrees in subjects that are not, actually, science? The QAA report on the University of Westminster courses awards a perfect score for ‘curriculum design, content and organization,’ despite this content consisting largely of what I consider to be early-nineteenth-century myths, not science. It happens because the QAA judges courses only against the aims set by those who run the QAA, and if their aims are to propagate magic as science, that’s fine.”
That was illustrated perfectly in the documentary when Dr Stephen Jackson of the QAA appeared to try to justify the fact that the QAA had, like the University of Wales, failed entirely to spot any of the obvious problems. He had a nice dark suit, tie and poppy, but couldn’t disguise the fact that the QAA had given high ratings to some very dubious courses.
The QAA sent nine people to the other side of the globe, at a cost of £91,000. They could have done a lot better if they’d spent 10 minutes with Google at home.
Universities UK (UUK)
Needless to say, the Committee of Vice-Chancellors and Principals has said nothing at all. As usual, Laurie Taylor had it all worked out in Times Higher Education (4th November).
Speaking to our reporter Keith Ponting (30), he commended UUK’s decision to say absolutely nothing whatsoever about the abolition of all public funding for the arts and humanities.
He also praised UUK’s total silence on Lord Browne’s view that student courses should primarily be evaluated by their employment returns.
When pressed by Ponting for his overall view of UUK’s failure to respond in any way at all to any aspect of the Browne Review, he described it as “welcome evidence, in a world of change, of UUK’s consistent commitment over the years to ineffectual passivity”.
Meanwhile, a University of Wales video on YouTube
Caveat emptor
Follow-up
A couple of days later, a search of Google news for the “University of Wales” shows plenty of fallout. The vice-chancellor claims that ““The Minister’s attack came as a complete and total surprise to me”. That can’t be true. It is over two years since I told him what was going on, and if he was unaware of it, that is dereliction of duty. It is not the TV programme that brought the University into disrepute, it was the vice-chancellor.
Chiropractors are getting very touchy indeed, all over the world. And no wonder, because their claims are being exposed as baseless as never before, in the wake of their attempts to stifle criticism by legal action..
In March, Shaun Holt appeared on Breakfast TV in New Zealand. Holt has done a lot of good work on TV in debunking some of the preposterous claims made by quacks. See him on YouTube.
This time he talked about chiropractic. Here is the video.
One could argue that he was over generous to chiropractic, especially when talking about their effectiveness in treating low back pain. He said, quite rightly, that chiropractors are no better than physiotherapists at treating low back pain.
But a recent trial suggests that neither are much good. “A randomised controlled trial of spinal manipulative therapy in acute low back pain” (Juni et al., 2009 in the BMJ; see also coverage in Pulse). This trial compared standard care with standard care plus spinal manipulative therapy (SMT). The results were negative, despite the fact that this sort of A + B vs B design is inherently biassed in favour of the treatment (see A trial design that generates only ”positive” results, Ernst & Lee 2008, Postgrad Med J.).
"SMT was performed by a specialist in manual medicine, chiropractice and rheumatology (GH), a specialist in physical medicine (DV) or an osteopath (RvB), all proficient in SMT."
"Conclusions: SMT is unlikely to result in relevant early pain reduction in patients with acute low back pain."
Admittedly, the trial was quite small (104 patients, 52 in each group) so it will need to be confirmed. but the result is entirely in line with what we knew already.
It also adds to the evidence that the recommendation by NICE of SMT by chiropractors constitutes their biggest failure ever to assess evidence properly. If NICE don’t amend this advice soon, they are in danger of damaging their hitherto excellent record.
Despite the moderate tone and accuracy of what Holt said on TV, the New Zealand Chiropractors’ Association made a formal complaint. That is what they like to do, as I learned recently, to my cost. It is so much easier than producing evidence.
Quite absurdly the New Zealand Broadcasting Standards Authority (BSA) has upheld some of the complaints. Their judgement can be read here.
The BSA consists of four people, two lawyers and two journalists. So not a trace of scientific expertise among them. Having people like that judging the claims of chiropractors makes as much sense as having them judged by Mr Justice Eady. They seem to be the sort of people who think that if there is a disagreement, the truth must lie half-way between the opposing views.
One of the BSA members, Tapu Misa, has used her newspaper column to quote approvingly the views of the notorious Dr Mercola web site on flu prevention “Your best defence, it says, is to eat right, get lots of sleep, avoid sugar and stress, load up on garlic, Vitamin D and krill oil”. (Snake oil is said to be good too.) There are some odd attitudes to science in some of her other columns too (e.g. here and here). Not quite the person to be judging the evidence for and against chiropractic, I think.
In fact the TV show in question was more than fair to chiropractors. It adopted the media’s usual interpretation of fair and balanced: equal time for the flat earthers. A Chiropractor was invited to reply to Holt’s piece. Here he is.
The chiropractor, Doug Blackbourn, started very plausibly, though a tendency to omit every third syllable made transcription hard work. He established that if you cut yourself you get better (without any help). He established that nerves run down the spinal cord. So far, so good. But then he quickly moved on to the usual flights of fancy.
"We have two premises. The body heals itself and the nervous system runs the body. Now the nervous system runs the body, travels down through the spinal cord so chiropractic is not based on the belief that, you know, energy flows, it’s based on the fact that your nervous system runs the body and [inaudible] affects the overall health of the body"
This statement is totally vague. It has nothing whatsoever to do with the main question, can chiropractors do anything useful. It is sheer flannel.
We’re seeing people, heck, diabetes. I had a quadriplegic come in one time for adjustment, we’ve got stroke people, we’ve got all sorts of conditions. We’re not treating the condition, We’re allowing, checking the spine to see if there’s any interference there that will slow the body down"
“Interference”? “slowing the body down”? These are utterly meaningless phrases that simply serve to distract from the only question that matters.
"Chiropractice is the most safest [sic] profession to go to to get your spine adjusted"
Hmm I thought it was the only job that uses the word ‘adjustment’.
Worst of all was his response to a question about asthma.
Presenter: "So chiropractors are not out there claiming they will cure asthma for example?". Chiropractor: "No"
This is simply untrue, both in New Zealand and in the UK. For a start, just look at what Blackbourn’s own web site says about asthma.
"The challenge, of course, with allergy and asthma medication is there is no end-point. There is no cure. Asthma and allergies, for the most part, are lifelong conditions requiring lifelong medication. Might there be a better way, an alternative solution?
“Alternative” is the key word. Medical treatment is designed to combat symptoms, and is successful to a certain extent with allergies and asthma. Underlying causes are not addressed, however, and symptoms continue year after year. What else might be done?
Enter chiropractic care. Chiropractic health care, with its unique comprehensive approach, is able to offer positive benefit to a variety of conditions and ailments. In the case of allergies and asthma, these “hypersensitivity conditions” may respond well to therapy designed to normalize the body’s flow of nerve signals. To use a metaphor, chiropractic treatment removes roadblocks to the body’s natural healing abilities. Restoring these imbalances may help reduce such hypersensitivity reactions."
Blackbourn’s web site describes him thus
"As a Doctor of Chiropractic, Dr. Doug Blackbourn . . ."
But the qualifications of “Dr” Blackbourn are B.App.Sc (Chiro) M.N.Z.C.A , the same as those of “Dr” Brian Kelly.
After a performance like this, perhaps someone should submit a complaint to the New Zealand Broadcasting Standards Authority.
After all, I notice that they have dismissed complaints from one chiropractor, Sean Parker, after a TV programme looked at the business practices of his private chiropractic practice, The Spinal Health Foundation. Perhaps the BSA understands business better than it understands science.
Follow-up
Is chiropractic crumbling in New Zealand? The New Zealand College of Chiropractic featured in my editorial in the New Zealand Medical Journal, and in the fallout from that article, It’s principle, “Dr” Brian Kelly (B App Sci (Chiro)) seems to be getting desperate. His college is now canvassing for recruits in Canada. They are promised all the woo.
- Subluxation centered techniques – Gonstead, Toggle Recoil, Thompson, Diversified
- Traditional philosophy featuring vitalism and innate healing – congruent curriculum
Perhaps Canada is a good place to recruit, gven the $500 million class action being brought against chiropractors in Canada, after Sandra Nette became tetraplegic immediately after a chiropractor manipulated her neck, Canadian chiropractors must be looking for somewhere to hide.
Stuff and Nonsense. jdc described this story at the time the complaint was lodged.
Shaun Holt’s own blog follows the action.
New Zealand Doctor covers the story.
Bay of Plenty Times “Bay researcher slams television complaint ruling“
In July 2008 I wrote an editorial in the New Zealand Medical Journal (NZMJ), at the request of its editor.
The title was Dr Who? deception by chiropractors. It was not very flattering and it resulted in a letter from lawyers representing the New Zealand Chiropractic Association. Luckily the editor of the NZMJ, Frank Frizelle, is a man of principle, and the legal action was averted. It also resulted in some interesting discussions with disillusioned chiropractors that confirmed one’s worst fears. Not to mention revealing the internecine warfare between one chiropractor and another.
This all occurred before the British Chiropractic Association sued Simon Singh for defamation. The strength of the reaction to that foolhardy action now has chiropractors wondering if they can survive at all. The baselessness of most of their claims has been exposed as never before. No wonder they are running scared. The whole basis of their business is imploding.
Needless to say chiropractors were very cross indeed. Then in February 2009 I had a polite email from a New Zealand chiropractor, David Owen, asking for help to find one of the references in the editorial. I’d quoted Preston Long as saying
"Long (2004)7 said “the public should be informed that chiropractic manipulation is the number one reason for people suffering stroke under the age of 45.”
And I’d given the reference as
7. Long PH. Stroke and spinal manipulation. J Quality Health Care. 2004;3:8–10
I’d found the quotation, and the reference, in Ernst’s 2005 article, The value of Chiropractic, but at the time I couldn’t find the Journal of Quality Healthcare. I did find the same article on the web. At least the article had the same title, the same author and the same quotation. But after finding, and reading, the article, I neglected to change the reference from J Quality Health Care to http://skepticreport.com/sr/?p=88. I should have done so and for that I apologise.
When I asked Ernst about the Journal of Quality Healthcare, he couldn’t find his copy of the Journal either, but he and his secretary embarked on a hunt for it, and eventually it was found.
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It turns out that Journal of Quality Healthcare shut down in 2004, without leaving a trace on the web, or even in the British Library. It was replaced by a different journal, Patient Safety and Quality Healthcare (PSQH) A reprint was obtained from them. It is indeed the same as the web version that I’d read, and it highlighted the quotation in question. The reprint of the original article, which proved so hard to find, can be downloaded here. |
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The full quotation is this
"Sixty-two clinical neurologists from across Canada, all certified members of the Royal College of Physicians and Surgeons, issued a warning to the Canadian public, which was reported by Brad Stewart, MD. The warning was entitled Canadian Neurologists Warn Against Neck Manipulation. The final conclusion was that endless non-scientific claims are being made as to the uses of neck manipulation(Stewart, 2003). They need to be stopped. The public should be informed that chiropractic manipulation is the number one reason for people suffering stroke under the age of 45."
I have often condemned the practice of citing papers without reading them (it is, of course, distressingly common), so I feel bad about this, though I had in fact read the paper in question in its web version. I’m writing about it because I feel one should be open about mistakes, even small ones.
I’m also writing about it because one small section of the magic medicine community seems to think they have nailed me because of it. David Owen, the New Zealand chiropractor, wrote to the editor of the NZMJ, thus.
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The quote [in question] is the public should be informed that chiropractic manipulation is the number one reason for people suffering stroke under the age of 45. Long PH. Stroke and Manipulation. J Quality Health Care. 2004:3:8-10 This quote actually comes from the following blog article http://www.skepticreport.com/medicalquackery/strokespinal.htm [DC the URL is now http://skepticreport.com/sr/?p=88] I have attached all my personal communications with Colquhoun. They demonstrate this is not a citation error. Prof Colquhoun believes the origin of the quote doesn’t matter because Long was quoting from a Canadian Neurologists’ report (this is also incorrect). As you can see he fails to provide any evidence at all to support the existance [sic] of the “J Quality Health Care.” Colquhoun ‘s belief that my forwarding this complaint is me “resorting to threats” is the final nail in the coffin. If he had any leg to stand on where is the threat? This may seem pedantic but it surely reflects a serious ethical breach. Is it acceptable to make up a reference to try and slip any unsupported statement into a “scientific” argument and thereby give it some degree of credibility? Incidentally, at the end of the article, conflicts of interest are listed as none. As Colquhoun is a Professor of Pharmacology and much of his research funding no doubt comes from the pharmaceutical industry how can he have no conflict of interest with therapies that do not advocate the use of drugs and compete directly against the billions spent on pain medications each year? If I may quote Colquhoun himself in his defence of his article (Journal of the New Zealand Medical Association, 05-September-2008, Vol 121 No 1281) I’ll admit, though, that perhaps ‘intellect’ is not what’s deficient in this case, but rather honesty. David Owen |
Financial interests
Well, here is a threat: I’m exposed as a shill of Big Pharma. ". . . much of his funding no doubt comes from the pharmaceutical industry". I can’t count how many times this accusation has been thrown at me by advocates of magic medicine. Oddly enough none of them has actually taken the trouble to find out where my research funding has come from. None of them even knows enough about the business to realise the extreme improbability that the Pharmaceutical Industry would be interested in funding basic work on the stochastic properties of single molecules. They fund only clinicians who can help to improve their profits,
The matter of funding is already on record, but I’ll repeat it now. The media ‘nutritional therapist’, Patrick Holford, said, in the British Medical Journal
“I notice that Professor David Colquhoun has so far not felt it relevant to mention his own competing interests and financial involvements with the pharmaceutical industry “
To which my reply was
” Oh dear, Patrick Holford really should check before saying things like “I notice that Professor David Colquhoun has so far not felt it relevant to mention his own competing interests and financial involvements with the pharmaceutical industry”. Unlike Holford, when I said “no competing interests”, I meant it. My research has never been funded by the drug industry, but always by the Medical Research Council or by the Wellcome Trust. Neither have I accepted hospitality or travel to conferences from them. That is because I would never want to run the risk of judgements being clouded by money. The only time I have ever taken money from industry is in the form of modest fees that I got for giving a series of lectures on the basic mathematical principles of drug-receptor interaction, a few years ago.”
I spend a lot of my spare time, and a bit of my own money, in an attempt to bring some sense into the arguments. The alternative medicine gurus make their livings (in some cases large fortunes) out of their wares.
So who has the vested interest?
Does chiropractic actually cause stroke?
As in the case of drugs and diet, it is remarkably difficult to be sure about causality. A patient suffers a vertebral artery dissection shortly after visiting a chiropractor, but did the neck manipulation cause the stroke? Or did it precipitate the stroke in somebody predisposed to one? Or is the timing just coincidence and the stroke would have happened anyway? There has been a lot of discussion about this and a forthcoming analysis will tackle the problem of causality head-on,
My assessment at the moment, for what it’s worth, is that there are some pretty good reasons to suspect that neck manipulation can be dangerous, but it seems that serious damage is rare.
In a sense, it really doesn’t matter much anyway, because it is now apparent that chiropractic is pretty well discredited without having to resort to arguments about rare (though serious) effects. There is real doubt about whether it is even any good for back pain (see Cochrane review), and good reason to think that the very common claims of chiropractors to be able to cure infant colic, asthma and so on are entirely, ahem, bogus. (See also Steven Novella, ebm-first, and innumerable other recent analyses.)
Chiropractic is entirely discredited, whether or not it may occasionally kill people.
Complaint sent to UCL
I had an enquiry about this problem also from my old friend George Lewith. I told him what had happened. Soon after this, a complaint was sent to Tim Perry and Jason Clarke, UCL’s Director and Deputy Director of Academic Services. The letter came not from Lewith or Owen, but from Lionel Milgom. Milgrom is well known in the magic medicine community for writing papers about how homeopathy can be “explained” by quantum entanglement. Unfortunately for him, his papers have been read by some real physicists and they are no more than rather pretentious metaphors. See, for example, Danny Chrastina’s analysis, and shpalman, here. Not to mention Lewis, AP Gaylard and Orac.
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Dear Mr Perry and Mr Clark, I would like to bring to your attention an editorial (below) that appeared in the most recent issue of the New Zealand Medical Journal. In it, one of your Emeritus Professors, David Colquhoun, is accused of a serious ethical breach, and I quote – “Is it acceptable to make up a reference to try and slip any unsupported statement into a “scientific” argument and thereby give it some degree of credibility?” Professor Colquhoun is well-known for writing extensively and publicly excoriating many forms of complementary and alternative medicine, particularly with regard to the alleged unscientific nature and unethical behaviour of its practitioners. Professor Colquhoun is also a voluble champion for keeping the libel laws out of science. While such activities are doubtlessly in accord with the venerable Benthamite liberal traditions of UCL, I am quite certain hypocrisy is not. And though Professor Colquhoun has owned up to his error, as the NZMJ’s editor implies, it leaves a question mark over his credibility. As custodians of the college’s academic quality therefore, you might care to consider the possible damage to UCL’s reputation of perceived professorial cant; emeritus or otherwise. Yours Sincerely Dr Lionel R Milgrom |
So, as we have seen, the quotation was correct, the reference was correct, and I’d read the article from which it came I made a mistake in citing the original paper rather than the web version of the same paper..
I leave it to the reader to judge whether this constitutes a "serious ethical breach", whether I’d slipped in an "unsupported statement", and whether it constitutes "hypocrisy"
Follow-up
It so happens that no sooner was this posted than there appeared Part 2 of the devastating refutation of Lionel Milgrom’s attempt to defend homeopathy, written by AP Gaylard. Thanks to Mojo (comment #2) for pointing this out.
Today, 29 July 2009, a large number of magazines and blogs will publish simultaneously Simon Singh’s article. The Guardian was forced to withdraw it, but what he said must be heard (even if the word ‘bogus’ is now missing).
This is an edited version if the article in the Guardian that resulted in the decision of the British Chiropractic Association to sue Singh for libel. That decision was bad for Singh, though its effects could yet be good for the rest of the world, Firstly the decision to use law rather than rational argument stands a good chance of destroying chiropractic entirely because its claims have now come under scrutiny as never before, and they have been found wanting. Secondly, the support for Singh has been so enormous that there must now be a good chance of getting the UK’s iniquitous laws about defamation changed.
I’d rather have reproduced the original article in its entirety, but this bowdlerised version still presents the case very strongly (and the unedited version appears here and here).
Beware the spinal trapSome practitioners claim it is a cure-all, but the research suggests chiropractic therapy has mixed results – and can even be lethal, says Simon Singh. You might be surprised to know that the founder of chiropractic therapy, Daniel David Palmer, wrote that “99% of all diseases are caused by displaced vertebrae”. In the 1860s, Palmer began to develop his theory that the spine was involved in almost every illness because the spinal cord connects the brain to the rest of the body. Therefore any misalignment could cause a problem in distant parts of the body. In fact, Palmer’s first chiropractic intervention supposedly cured a man who had been profoundly deaf for 17 years. His second treatment was equally strange, because he claimed that he treated a patient with heart trouble by correcting a displaced vertebra. You might think that modern chiropractors restrict themselves to treating back problems, but in fact some still possess quite wacky ideas. The fundamentalists argue that they can cure anything, including helping treat children with colic, sleeping and feeding problems, frequent ear infections, asthma and prolonged crying – even though there is not a jot of evidence. I can confidently label these assertions as utter nonsense because I have co-authored a book about alternative medicine with the world’s first professor of complementary medicine, Edzard Ernst. He learned chiropractic techniques himself and used them as a doctor. This is when he began to see the need for some critical evaluation. Among other projects, he examined the evidence from 70 trials exploring the benefits of chiropractic therapy in conditions unrelated to the back. He found no evidence to suggest that chiropractors could treat any such conditions. But what about chiropractic in the context of treating back problems? Manipulating the spine can cure some problems, but results are mixed. To be fair, conventional approaches, such as physiotherapy, also struggle to treat back problems with any consistency. Nevertheless, conventional therapy is still preferable because of the serious dangers associated with chiropractic. In 2001, a systematic review of five studies revealed that roughly half of all chiropractic patients experience temporary adverse effects, such as pain, numbness, stiffness, dizziness and headaches. These are relatively minor effects, but the frequency is very high, and this has to be weighed against the limited benefit offered by chiropractors. More worryingly, the hallmark technique of the chiropractor, known as high-velocity, low-amplitude thrust, carries much more significant risks. This involves pushing joints beyond their natural range of motion by applying a short, sharp force. Although this is a safe procedure for most patients, others can suffer dislocations and fractures. Worse still, manipulation of the neck can damage the vertebral arteries, which supply blood to the brain. So-called vertebral dissection can ultimately cut off the blood supply, which in turn can lead to a stroke and even death. Because there is usually a delay between the vertebral dissection and the blockage of blood to the brain, the link between chiropractic and strokes went unnoticed for many years. Recently, however, it has been possible to identify cases where spinal manipulation has certainly been the cause of vertebral dissection. Laurie Mathiason was a 20-year-old Canadian waitress who visited a chiropractor 21 times between 1997 and 1998 to relieve her low-back pain. On her penultimate visit she complained of stiffness in her neck. That evening she began dropping plates at the restaurant, so she returned to the chiropractor. As the chiropractor manipulated her neck, Mathiason began to cry, her eyes started to roll, she foamed at the mouth and her body began to convulse. She was rushed to hospital, slipped into a coma and died three days later. At the inquest, the coroner declared: “Laurie died of a ruptured vertebral artery, which occurred in association with a chiropractic manipulation of the neck.” This case is not unique. In Canada alone there have been several other women who have died after receiving chiropractic therapy, and Edzard Ernst has identified about 700 cases of serious complications among the medical literature. This should be a major concern for health officials, particularly as under-reporting will mean that the actual number of cases is much higher. If spinal manipulation were a drug with such serious adverse effects and so little demonstrable benefit, then it would almost certainly have been taken off the market. Simon Singh is a science writer in London and the co-author, with Edzard Ernst, of Trick or Treatment? Alternative Medicine on Trial. This is an edited version of an article published in The Guardian for which Singh is being personally sued for libel by the British Chiropractic Association. |
That’s a great account of the evidence. Notice the conclusion,
“If spinal manipulation were a drug with such serious adverse effects and so little demonstrable benefit, then it would almost certainly have been taken off the market“.
It is the job of NICE to evaluate critically that sort of thing, which makes it all the odder that the NICE guidance group, very unusually, failed to assess properly the evidence for chiropractic.
If you aren’t one of the 15,000 people who have already signed Singh’s statement, please do it now
Follow-up
Resignation of Pain Society president. While we are on the topic of chiropractic, my comment, The hidden cost of endorsing voodoo, appeared at last on the BMJ article about NICE’s low back pain guidance. The thread came back to life after the British Pain Society voted out its president, Paul Watson, a physiotherapist who was a member of the group that wrote the guidance.
Some of the links Links to some of the many repostings of Singh’s article today are aggregated at Sense about Science. There where over 200 in a single day. The British Chiropractic Association tried to suppress criticism, but they clearly don’t understand the web.
“An intrepid, ragged band of bloggers. Chiropractors may regret choosing to sue Simon Singh, springing online scientists into action”. Ben Goldacre has summed up the reaction of the blogosphere with characteristically fine style in the Guardian. Ragged? Moi? The blog version (with links) is here.
On 17th June 2009, 15 months after Singh’s article was published, the British Chiropractic Association (BCA) has finally produced its evidence (though only after enormous pressure from bloggers [download as pdf]..
Jack of Kent has already made some comments from the legal point of view.
As expected, the list of references they give is truly pathetic, The list of 29 references has nine about infantile colic, four about asthma (two of which refer to osteopathy not chiropractic). three about the safety of chiropractic (a contentious matter but not the point here) and three about the safety of non-steroidal anti-inflammatory drugs (an important matter but utterly irrelevant here).
Let’s look at the papers about colic. Most are in obscure alternative medicine journals, not easily available, but the BCA’s own synopsis is sufficient for now.
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Klougart N, Nilsson N and Jacobsen J (1989) Infantile Colic Treated by Chiropractors: A Prospective Study of 316 Cases, J Manip Physiol Ther,12:281-288. [ download thr reprint]. As evidence it is about as useless as the infamous Spence study so beloved of homeopaths. There was no control group at all. It simply follows 316 babies and found that most of them eventually got better. Well, they do, don’t they? It is a sign of the pathetic standard of research in chiropractic that anyone should think this paper worth mentioning at all.
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Mercer, C. and Nook, B. in the Proceedings of the 5th Biennial Congress of the World Federation of Chiropractic (1999) (so no peer review, for what that is worth). “Resolution of symptoms [of infantile colic] in 93% of infants treated with spinal manipulation”.. This sounds as useless as Klougart et al. Why only 93% one wonders? Every parent knows that 100 percent of babies stop crying eventually.
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Wiberg et al. J Manip Physiol Ther, 1999, 242 517 – 522. This one was randomised (but not blind) and showed that spinal manipulation was as effective as dimethicone for colic. [Download pdf]
I expect that all that means is that dimethicone doesn’t work either. -
Hayden & Mullinger (2006) Complementary Ther. clin. Prac. “This preliminary study suggested that cranial osteopathic treatment can benefit infants with colic”. So. (a) preliminary and (b) not chiropractic.
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Hipperson AJ (2004) Clinical Chiropractic 11, 122 – 129. A report of two case studies, so essentially worthless as evidence The journal isn’t even listed in Pubmed.
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Browning M. Miller, J. Clinical Chiropractic (2008) 11, 122—129 [download pdf] Comparison of the short-term effects of chiropractic spinal manipulation and occipito-sacral decompression in the treatment of infant colic: A single-blinded, randomised, comparison trial. This paper just compared two different chiropractic methods. It shows that both are equally effective, or equally plausibly, both are equally ineffective.
- Leach RA (2002) J Manip Physiol Ther, 25, 58 -62. Merely two case reports and they refer to usie of a mechanical device, not the usual chiropractic manipulation.
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Miller J (2007) Clinical Chiropractic 10, 139—146 Cry babies: A framework for chiropractic care [download pdf]. No evidence at all here. It isn’t a research paper.
- Nilsson N. 1985 Eur J Chiropr 33, 264 – 255 Infantile colic and chiropractic. “Respondents to a questionnaire revealed that 91% of of infants improved after 2 – 3 manipulations”. Again, no controls. So, babies stop crying, eventually.
That seems to be the best they can do. What they don’t do is mention any of the papers that contradict their claims. They cite Sackett et al. (1996) as their criterion for what constitutes evidence, That paper says “Evidence based medicine is the conscientious, explicit, and judicious use of current best evidence”. That means all the evidence. So why, for example, is there no mention of Olafsdottir et al. (2001), “Randomised controlled trial of infantile colic treated with chiropractic spinal manipulation”. That is one of the few really good papers in the area. It compared chiropractic treatment of babies for colic with placebo treatment (the nurse just held the baby for 10 minutes (the time the chiropractor took). The conclusion was
Conclusion Chiropractic spinal manipulation is no more effective than placebo in the treatment of infantile colic. This study emphasises the need for placebo controlled and blinded studies when investigating alternative methods to treat unpredictable conditions such as infantile colic.
More on this dishonest selectivity can be found at Holfordwatch.
No doubt there will soon be more analyses of what passes, in the eyes of the BCA, for evidence, The nine papers they cite for colic are truly pathetic. Not a single one of them amounts to anything that would be recognised as evidence in the real world. And papers that do provide real evidence are not mentioned.
Follow-up
As always, the blogs provided a very fast response to a document that appeared only late last night. And, as always, these unpaid people, working in their spare time, have done a far better job than the suits at the BCA (or NICE).
Here are some of them.
“A Review of The BCA’s Evidence for Chiropractic”. Martin on The Lay Scientist.
“The BCA have no evidence that chiropractic can help with ear infections” on Gimpy’s blog.
“Examining the BCA’S ‘Plethora’ of Evidence”. Unity, at Ministry of Truth.
“British Chiropractic Association and The Plethora of Evidence for Paediatric Asthma”. On Evidence Matters
“BCA Statement Baffles Blogger”. James Cole on jdc325’s Weblog
“Careful, BCA, you might slip a disk. The British Chiropractic Association may need to hire a chiropractor to work on themselves: they’re shoveling so hard they’re likely to hurt their backs.” In the US magazine, Discover.
“British Chiropractic Association (BCA) demonstrate what evidence-based medicine isn’t” at Holfordwatch. This one shows nicely how the BCA fail to apply their own standard of evidence, based on Sackett et al. (1996).
“The BCA’s worst day”. “Today has not been a good day for the British Chiropractic Association”. Jack of Kent summarises the demolition, in 24 hours, of the BCA’s ‘evidence’
Laurie Taylor says it all.
Could this bit (dated 18 June) in Laurie Taylor’s saga of the University of Poppleton possibly have been inspired by the Singh affair?
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Sweet smell of success Our campus burst into colour last week as members of the Department of Aromatherapy, led by Professor Gwendolyn Frisson, paraded round the former administrative block happily waving bunches of wild carrot, devil’s claw, cinnamon leaf and lime blossom. What sparked the herbal celebration was the news of a full retraction from the journalist on the Poppleton Evening News who had described the department in print as “a hotchpotch of untestable propositions and unproven medical interventions”. The journalist in question, Simeon Rainbow, explained in his published retraction that he’d had time to reflect on the department’s reaction to his original article and now fully recognised that there was no better way of deciding upon the scientific validity of practices such as aromatherapy than by threatening anyone who denied such validity with an enormously costly libel action. Professor Frisson said that she welcomed the retraction. She would now be able to return with renewed enthusiasm to her research on the beneficial effects of grated angelica root on patients with advanced encephalitis. |
A flood of complaints against chiropractors has arrived at the General Chiropractic Council (GCC) in the wake of the British Chiropractic Association (BCA) v Singh affair. It is really rather beautiful that people have put some such enormous effort into writing complaints for no gain to themselves.
My own paltry two complaints to the GCC produced an interesting reaction. Yesterday I was told by the GCC
“Under the provisions of the General Chiropractic Council (Investigating Committee) Rules
2000 (“the Rules”), the Committee is required to invite you to make a statement of evidence in relation to your complaint by way of statutory declaration or affidavit. If you wish to, you can discuss your complaint with a solicitor who acts on behalf of the Committee who could help you draft a statement of evidence that meets the requirements of the Rules. The General Chiropractic Council will pay for the Investigating Committee solicitor’s costs and will reimburse you for any fee you subsequently pay for having your witness statement sworn at a location convenient to you.”
Naturally I shall take up this offer. If the same offer is made to everyone who complained (must be approaching 600), the legal fees incurred by the GCC would presumably be enough to bankrupt them. No wonder they are wriggling.
Here is a letter sent by the GCC’s Chief Executive and Registrar, Margaret Coats, a couple of days ago. It reached me by more than one route, but it is already on the web anyway, on Richard Lanigan’s site, Told you the General Chiropractic Council would find a way to dismiss the complaints. “Protecting the public” my arse! Protecting themselves more like it.. (The GCC has been under attack from within for some time, though mainly because some chiropractors think it regulates too much, not too little)
The bit that is especially interesting is para 2
In quangos like the GCC, complaints don’t necessarily get considered at all. First they go to an investigating committee (IC) which has to decide if there is a ‘case to answer’. Now the GCC wants that criterion to be changed to ‘realistic prospect of success’. Given the GCC’s attitude to evidence it is hard to imagine that any complaint will have a ‘realistic prospect of success’.
The second idea is even more grotesque. The GCC want to be able to dismiss without consideration rafts of complaints where in their opinion, referral to the Professional Conduct Committee (PCC) ‘is not required in the public interest. Or, more likely, not required in the interests of the GCC.
Will the Privy Council acquiesce in this disgraceful attempt to evade complaints? Wel, until January 2008, Graham Donald was a senior civil Servant at the Privy Council bit he now works for the GCC. That must help.
The GCC has been contacted by several Trading Standards Offices too, after complaints made to them about chiropractors. . A response was sent by the GCC on 5 June [download the whole response]. It includes
“It is important to emphasise that the GCC doesn’t claim that chiropractors ‘treat’ asthma, headaches (including migraine) and infant colic. It is possible that chiropractic care may help to alleviate the symptoms of some of these conditions.”
What on earth is that meant to mean?
One hopes that Trading Standards officers are too smart to be taken in by weasel words like that.
The attitude of the GCC to evidence is amply illustrated by the fact that they have said that the rather crude myths known as craniosacral therapy and applied kinesiology fall within their definition of evidence-based care.
Any organisation that can say that is clearly incompetent.
Follow-up
Peter Dixon is a chiropractor. He is chair of the General Chiropractic Council (GCC). He was also a member of the hotly-disputed NICE low back pain guidance group that endorsed (you guessed it) the use of chiropractic, a decision that has led to enormous criticism of the standards of the National Institute of health and Clinical Excellence (NICE).
As a consequence largely of the decision of the British Chiropractic Association (BCA) to sue Simon Singh for defamation, there has been an unprecedented interest taken in the claims made by chiropractors in general.
Peter Dixon has a problem because something like 600 individual complaints about unjustified health claims have been sent to the GCC. Even when a web site does not claim to be able to benefit things like asthma and colic, a phone call may reveal that claims are made in private (one of the many complaints to the GCC concerns such behaviour by two practices belonging to, ahem, Peter Dixon Associates).
The crucial question is, as always, one of evidence. The BCA claim to have a plethora of evidence for their claims, but they have been strangely reluctant to produce it. In fact evidence is cited on the “Your first visit” page on Dixon’s site.
At the bottom we see “How effective is Chiropractic?”.
That sounds very impressive indeed: . ” . . . patients who received chiropractic treatment improved by 70% more than those given hospital out-patient.”
But hang on. If we look at the paper, Meade et al., 1990 [download reprint], we see that Figure 2 looks like this.
Several things jump out. First, the Oswestry disability index scale runs for 0 to 100, but scores are plotted only from 0 to 35, so the size of the effects are exaggerated. Second, there are no error bars on the points. Third there is essentially no advantage for chiropractic at all when all patients are taken together (top graph). Fourth, and most important, the patients who were followed up for two years (bottom graph) seem to show a slight advantage for chiropractic but on average, the effect is 7 percent (on the 100 point scale, NOT 70 percent as claimed on the web site of Peter Dixon Associates.
What sort of mistake was made?
The abstract of the paper itself says “A benefit of about 7% points on the Oswestry scale was seen at two years.” How did this become “improved by 70% more”?
It could have been simple a typographical error, but that seems unlikely, Who’d boast about a 7% improvement?
Perhaps it is a question of relative versus absolute change. The Figure does not show the actual scores on the 100 point scale, but rather the change in score, relative to a questionnaire given just before starting treatment. If we look at the lower part of the Figure, restricted to those patients who stayed with the trail for 2 years (by this time 28% of the patients had dropped out), we see that there is a reduction in score (improvement) of about 10 points on the 100 point scale with hospital treatment (not a very impressive response). The improvement with those sent to private chiropractic clinics was about seven points bigger. So a change from 10 to 17 is a 70 percent change. What’s wrong with that?
What’s wrong is that it is highly misleading, as relative changes often are. Imagine that the hospital number had been 7 points and the chiropractic number had been 14 (both out of 100). That would mean that both treatments had provided very modest benefits to the patients. Would it then be fair to describe the chiropractic patients as have improved by 100 percent more than the hospital patients, when in fact neither got much benefit? Of course it would not. To present the results in this way would be highly deceptive.
Put another way, a 70% increase in a trivial effect is still pretty trivial.
That isn’t all either. The paper has been analysed in some detail on the ebm-first site. The seven point difference on a 100 point scale, though it may be real, is too small to be ‘clinically significant’ In other words the patient would scarcely notice such a small change. Another problem lies in the nature of the comparison. Patients were, quite properly, allocated at random to chiropractic or to to hospital treatment. BUT the comparion was very from blind. one group was treated in hospital. The other group was sent to private chiropractic clinics. The trivial 7 point difference could easily be as much to do with the thickness of the carpets rather than any effect of spinal manipulation.
What this paper really tells you is that neither treatment is very effective and that there is little to choose between them.
It is really most unfortunate that the chairman of the GCC should show himself to be so careless about evidence at a time when the evidence for the claims of chiropractors is under inspection as never before. It does not add to their case for criticising Simon Singh and it does not add to one’s confidence in the judgement of the NICE guidance group.
Follow-up
The Pain Society revolt. A letter has been sent from several distinguished members of the British Pain Society to its President and Council.
“We, the undersigned, call upon the President of the British Pain Society to issue a statement to NICE and to the press condemning outright the conclusions of the recent UK National Institute for Health and Clinical Excellence (NICE) guidelines . . .”
The sigificance of this letter is that the present president of the British Pain Society is Professor Paul Watson who was a member of the NICE guidance group that produced the recommendations which have engendered such criticism. He was clinical advisor to the guidance group. There is a video of Paul Watson talking about back pain, that seems to me to illustrate very well the problem with the guidance. He says it is a huge problem (everyone knows that) and that something must be done, but he doesn’t say what. There is no admission that, in very many cases, nobody knows what to do. It is exactly this sort of hubris that that makes the NICE report so bad,
One caustic comment on the letter says
“We are led by a physiotherapist! A Professor who cannot even interpret straight forward evidence when it is presented to him on a plate.
Who’s going to be the next BPS President? A Hospital Porter?”
This is another short interruption in the epic self-destruction of chiropractors. In a sense it is more serious. One expects quacks to advocate quackery. What you don’t expect is that the National Institute of Clinical Excellence (NICE) will endorse it. Neither do you expect the Medicines and Healthcare products Regulatory Agency (MHRA) to betray its mandate to make sure that medicines work.
The saga of the NICE low back pain guidance has been the subject of a deluge of criticism, It seems doubtful that the guidance can survive, not least because of its absurd endorsement of chiropractic, at a time when chiropractic is undergoing self-immolation as a consequence of the persecution of Simon Singh by the British Chiropractic Association (see here, and here, and here, and here and thousands of other sites).
The other betrayal has come to the for after the MHRA approved highly misleading labelling of a homeopathic preparation. At the time,
in 2006, when the principle was approved by the MHRA, just about every scientific organisation, even the Royal Society, condemned the action. What was discouraging that the clinical organisations all stayed silent. It is still a mystery why the MHRA made this enormous mistake, Some said that European regulations required it, but that is quite untrue, as Les Rose has shown. It appears to have been the result of a pusillanimous MHRA bowing to pressure from a deeply unscientific Department of Health (a letter from Caroline Flint at the time borders on the surreal).
On 20 May 2009, the British Medical Journal printed an article Drugs agency grants its first licence to homoeopathic product by Deborah Cohen (available free). The comments were mostly highly critical of the MHRA. The BMJ asked, as it does from time to time, for my comment to be converted to a letter
for the print edition. That isn’t freely available, so here it is.
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Published 9 June 2009, doi:10.1136/bmj.b2333 LettersHomoeopathic product licenceMHRA label seems to be illegalThe strap line for the Medicines and Healthcare products Regulatory Agency (MHRA) is “We enhance and safeguard the health of the public by ensuring that medicines and medical devices work and are acceptably safe.” Yet the MHRA has made mockery of its own aims by ignoring the bit about “ensuring that medicines work” and allowing Arnica 30C pills to be labelled: “a homoeopathic medicinal product used within the homoeopathic tradition for the symptomatic relief of sprains, muscular aches, and bruising or swelling after contusions.”1 This label should be illegal anyway because the pills contain no trace of the ingredient on the label, but this deceit has been allowed through a legal loophole for a long time now. If you sold strawberry jam that contained not a trace of strawberry you’d be in trouble. But I can see no legal loophole that allows the manufacturers of Arnica 30C to evade the provisions of the Consumer Protection from Unfair Trading Regulations 2008. One of the 31 commercial practices which are in all circumstances considered unfair is “falsely claiming that a product is able to cure illnesses, dysfunction, or malformations.” The consumer protection laws apply to the way that “the average consumer” will interpret the label. The average consumer is unlikely to know that “used within the homoeopathic tradition” is a form of weasel words that actually means “there isn’t a jot of evidence that the medicine works.” Since there is not the slightest evidence that Arnica 30C pills provide symptomatic relief of sprains, etc, the labelling that the MHRA has approved seems to be illegal. The MHRA is not selling anything itself, so I presume that it won’t find itself in court, but anyone who follows its advice could well do so. Cite this as: BMJ 2009;338:b2333 David Colquhoun, research professor1 University College London, London WC1E 6BT Competing interests: None declared. References |
It is, I suppose, just a sign of the chaos that reigns in the multiple agencies and quangos responsible for ‘regulation’ that one arm of government proposes action that a different branch would consider illegal. That is an inevitable consequence of trying to regulate something without first deciding whether it is nonsense or not. The Department of Health appears to be quite incapable of grasping this simple and obvious fact.
Follow-up
Health: best treatments. The Guardian seems to the be picking up BMJ stories and ran this one.
The battle for freedom of speech is under way.
| Simon Singh is a great science writer and communicator. He is author of The Big Bang, The Code Book, Fermat’s Last Theorem, and, with Edzard Ernst, Trick or Treatment. They are superb books (buy from Amazon). |  |
When Singh had the temerity to express an honest opinion, based on the evidence, about that very curious branch of alternative medicine known as chiropractic, the British Chiropractic Association sued Singh for defamation.This was their substitute for producing evidence for their bizarre claims.
Chiropractors seem to be particularly fond of litigation, perhaps because they are so short of evidence. Having had legal threats from them myself, I know how scary it can be, Luckily I was saved by a feisty a journal editor. Singh wasn’t so lucky. The history is recounted here,
The legal aspects of the case are being described by the lawyer who writes under the name of Jack of Kent. He has regular updates on progress.
Put briefly, Libel: A very expensive remedy, to be used only when you have no evidence. Appeals to alternative practitioners because truth is irrelevant
The iniquitous nature of England’s libel law has been described eloquently by Nick Cohen, in the Observer. It is used regularly by rogues and criminals from all over the world to silence their critics. All they need is money. Truth is irrelevant. It is a disgrace to a civilised country.
The cost of defamation cases in the UK is vastly greater than in any other country in Europe:: look at the graph.
With enormous courage, Simon Singh has decided to appeal against the ruling by Mr Justice Eady. Scientists and journalists everywhere should rally to support him, if they value the right to express an honest opinion without being bankrupted by a law court. Singh is taking a great risk on behalf of anyone who values freedom of speech.
The charity, Sense abour Science (SaS), has started a campaign to Keep the Libel Laws out of Science.
Read the statement about the campaign on the SaS site, and the current list of signatories. The list of supporters is already very impressive. It includes, for example, professor Lord (Martin) Rees, president of the Royal Society and Astronomer Royal, to Dr Philip Campbell Editor-in-Chief of Nature, David Starkey Historian, Stephen Fry Broadcaster and Author and Baroness Helena Kennedy QC Barrister.
You can sign the statement yourself there. Do it. Now!
You can also get code for the button (above) to link your own web site to the campaign.
In 1894, a local Iowa newspaper, The Davenport Leader, wrote of the founder of chripractic, D.D. Palmer, thus.
“A crank on magnetism has a crazy notion hat he can cure the sick and crippled with his magnetic hands. His victims are the weak-minded, ignorant and superstitious, those foolish people who have been sick for years and have become tired of the regular physician and want health by the short-cut method he has certainly profited by the ignorance of his victim. His increase in business shows what can be done in Davenport, even by a quack.” [quoted in Rose
Shapiro’s book, Suckers]
Today, in the UK, no newspaper would dare to express an opinion like that.
We all hope that Singh will win the appeal. But even if he doesn’t win in the law courts, he will have scored an enormous moral victory. What’s more, chiropractic is now under scrutiny as never before. There is going to be a chiro-fest that will make the British Chiropractic Association rue the day that it decided to use legal bullying in place of reason.
They may even have signed their own death warrant.
Follow up will be posted here regularly
Follow-up
There is a good roundup of activity up to June 3rd here.
The Wall Street Journal (June 4th) discusses the case under the title Britain Chills Free Speech.
British Medical Journal editorial by Evan Harris (Lib dem member of parliament and doctor), Science in Court
Bait and switch. Oh dear, oh dear. Just look at British Chiropractic Association tell their members to hide their sins from prying eyes.
Excellent round-up of the recent outburst of writing about “chiroquacktic” (Tut, tut, is there no respect?).
Dr Crippen writes “NICE recommends a cure for all known disease” [Ed some exaggeration, surely]
The first post was NICE falls for Bait and Switch by acupuncturists and chiropractors: it has let down the public and itself.
That was followed by NICE fiasco, part 2. Rawlins should withdraw guidance and start again.
Since then, something of a maelstrom has engulfed NICE, so it’s time for an update.
It isn’t only those who are appalled that NHS should endorse voodoo medicine on the basis of very slim evidence who are asking NICE to rethink their guidance on low back pain. Pain specialists are up in arms too, and have even started a blog, ‘Not Nearly as NICE as you think …‘, to express their views. Equally adverse opinions are being expressed in the Britsh Medical Journal. A letter there is signed by over 50 specialists in pain medicine. It ends thus
“Because of these new guidelines patients will continue to experience unnecessary pain and suffering and their rights to appropriately individually tailored treatment have been removed on the basis of a flawed analysis of available evidence. We believe the guidelines do not reflect best practice, remove patient choice and are not in our patients’ best interests.”
In a contribution headed “NICE misguidance”. Dr Michel Vagg ends
It seems to me that this guideline has been used as a propaganda vehicle to allow cherry-picked evidence to be enshrined as doctrine. This is an abuse of the guideline development process . . . ”
I have to say, though, that it seems to me that some of these people are promoting their own interests as much as chiropractors and acupuncturists. The evidence that spinal injections produce worthwhile benefits seems to be as thin as the evidence that chiropractic and acupuncture produce worthwhile benefits. But no doubt the injections are good for the budgets of PCTs or private practice doctors.. Could it perhaps be the case that some of the clinicians’ anger is being generated by doctors who are rushing to defend their own favourite ineffective treatment?
Why, oh why, can’t either NICE or the pain consultants bring themselves to state the obvious, that nothing works very well. The only thing that can be said for most of the regular treatments is that although they may not be much more effective than acupuncture or chiropractic, at least they don’t come with the intellectually-offensive hokum that accompanies the latter. Very sensible attempts have been made to identify the cause of low back pain [reviewed here], Occasionally they succeed. Mostly they don’t.
One clinician’s letter deserves special attention because it goes into the evidence, and the costs, in some detail. Its conclusions are very different from those in the NICE guidance.
The letter, a Review of NICE guidance, is from Dr C.J.D. Wells [download the whole letter]. He is a pain relief consultant from Liverpool.
Let’s look at some highlights.
Wells points out the absurdity of the cost estimates
“In the pricing section, they estimate that this will require an increase of facilities so that 3,500 patients can be treated instead of 1,000 at present (again see comments on pricing). This is not many treatments for the 20 million sufferers, of whom we can estimate that at least 2 million will have significant long-term disability and psychological distress”
And that is without even costing all the secondary costs of miseducating a new generation of students in fables about “Qi”, meridians, energy flow, subluxations and innate intelligence.
“The abysmal ignorance of the committee is reflected in the poor overall advice. So if you have a committee with special interests in Exercise, Manipulation, PMP’s, and Surgery, and you call an expert on Acupuncture, you get advice to use Exercise, Manipulation, Acupuncture, PMP’s and Surgery. Amazing.”
Another pain consutant, Charles Guaci, says in a comment in the Daily Mail.
I am a Pain Consultant of 30 years experience, have published two books (one translated into different languages).
NICE never asked me for my opinion.
This is the most ridicuculous pseudo-scientific document I have ever seen.
The panel consisted of a surgeon, psychologist, osteopath, acupuncturist a physiotherapist and an academic; not one pain consultant! The conclusions are simply a means of increasing the employment of their friends!
All evidence submitted to NICE was ignored.
It is almost certain than unless NICE rethink their ideas that Pain Consultants will be seeking a judicial review as well as full disclosure of how the panel arrived at their bizarre findings under the Freedom of information act.
Patients should realise that they are being taken for a ride.
Despite the outcry from opponents of magic medicine and from pain specialists, the assessment by the normally excellent NHS Choices site was disappointing. It made no mention at all of the secondary consequences of recommending CAM and described the assertions of the guidance group quite uncritically.
The reputation of NICE
NICE has been criticised before, though usually unjustly. In the past I have often supported them. For example. when NICE said that treatment of dementia with anticholinesterase drugs like galantamine was ineffective, there was a great outcry, but NICE were quite right. There is little or no rationale for such treatments, and more importantly, very little evidence that they work. But patients, especially when they are desperate, have greater faith in drug treatments than most pharmacologists, They want to clutch at straws. A bit like the NICE guidance committee, faced with a bunch of treatments most of which are almost ineffective, clutched at the straws of acupuncture and chiropractic. But this time it isn’t only the patients who are cross. It is most of the medical and scientific world too.
One interpretation of these bizarre events is that they represent a case of medical/scientific arrogance. Ben Goldacre wrote of another aspect of the same problem thus week, in Dodgy academic PR [download the paper on which this is based].
The first job of a scientist is to say openly when the answer to a question is not known. But scientists are under constant pressure to exaggerate the importance of their results. Last year we published an article which I feel may, if verified, turn out to be the second most important that I have ever been an author on. Because it happened to be published in Nature (not because of its quality), a press release was written (by an arts graduate!). It took some argument to prevent the distorted and exaggerated account being imposed on the public. This is typical of the sort of thing reported in Goldacre’s column. I reported a similar case a while ago, Why honey isn’t a wonder cough cure: more academic spin.
If NICE does not reconsider this guidance, it is hard to see how it can be taken seriously in the future. I hope that when NICE’s director, Professor Sir Michael Rawlins, returns from his trips abroad, he will find time to look at the case himself.
Indirectly, then, it can be argued that NICE’s bizarre guidance is just another manifestation of the management of science being passed from the hands of scientists into the hands of administrators and spin experts. It is yet another example of DC’s rule
Never trust anyone who uses the word ‘stakeholder’
Some bone-headed bureaucrat decides that any charlatan or quack is a ‘stakeholder’ in the provision of NHS care and gives them a quite disproportionate say in how taxpayers’ money is spent. The bureaucrats are so busy following processes and procedures, ticking boxes, and so deficient in scientific education, that they failed to notice that they’ve been caught out by the old trick of used car salesmen, bait and switch.
The consequences
The expected consequences have already started to materialise. The Prince of Wales’ Foundation for Magic Medicine is jubilant about having been endorsed by NICE. And I’m told that “The chiropractors have now just written letters to all health boards in Scotland asking for contracts for their services to deal with back pain”.
There could hardly have been a worse time for NICE to endorse chiropractic. We are in the middle of a storm about free speech because of the disgraceful action of the British Chiropractic Associaton in suing one of our best science writers, Simon Singh, for defamation because he had the temerity to express an opinion, Of course, even if the BCA wins in court, it will be the overall loser, because chiropractic claims are now being scrutinised as never before (just look at what they told me).
Follow-up
A much-cited paper. The paper that is most often cited by chiropractors who claim to be able to cure colic by spinal manipulation is Klougart N, Nilsson N and Jacobsen J (1989) Infantile Colic Treated by Chiropractors: A Prospective Study of 316 Cases, J Manip Physiol Ther,12:281-288. This is not easy to get hold of but Steve Vogel has sent me s scanned copy which you can download here. As evidence it is about as useless as the infamous Spence study so beloved of homeopaths. There was no control group at all. It simply follows 316 babies and found that most of them eventually got better. Well, they do, don’t they? It is a sign of the pathetic standard of reaearch in chiropractic that anyone should think this paper worth mentioning at all.
June 6 2009. More flak for NICE from the Royal College of Anaesthetists, and more adverse comment in the BMJ. And of course the blogs. for example, “If this is “evidence based medicine” I want my old job back“.
“Acupuncture on the NHS: a dangerous precedent”: a good analysis at counterknowledge.com.
June 6 2009, Comment sent to the BMJ. The comment was submitted, as below, early on Friday 5th June. The BMJ said it was a “sensitive issue” and for the next five days lawyers pondered over it.
Underwood and Littlejohns describe their guidance as being a “landmark”. I can only agree with that description. It is the first time that NICE has ever endorsed alternative medicine in the face of all the evidence. The guidance group could hardly have picked a worse moment to endorse chiropractic. Chiropractors find it so hard to find evidence for their practices that, when one of our finest science writers, Simon Singh, asked to see the evidence they sued him for defamation. I suggest that the guidance group should look at the formidable list of people who are supporting Singh, after his brave decision to appeal against this iniquitous persecution.
Of course I’m sure this bizarre decision has nothing to do with the presence on the guidance group of Peter Dixon, chair of the General Chiropractic Council. Nevertheless, I am curious to know why it is that when I telephoned two of the practices belonging to Peter Dixon Associates, I was told that they could probably treat infantile colic and asthma. Such claims have just been condemned by the Advertising Standards Authority.
The low back pain guidance stands a good chance of destroying NICE’s previously excellent reputation for dispassionate assessment of benefits and costs. Yes, that is indeed a landmark of sorts.
If NICE is ever to recover its reputation, I think that it will have to start again. Next time it will have to admit openly that none of the treatments work very well in most cases. And it will have to recognise properly the disastrous cultural consequences of giving endorsement to people who, when asked to produce evidence, resort to legal intimidation.
Eventually, on Wednesday 10 June the comment appeared in the BMJ, and it wasn’t greatly changed. Nevertheless if is yet another example of legal chill. This is the final version.
Underwood and Littlejohns describe their guidance as being a “landmark”. I can only agree with that description. It is the first time that NICE has ever endorsed alternative medicine in the face of all the evidence. The guidance group could hardly have picked a worse moment to endorse chiropractic. Chiropractors are so sensitive about criticisms of their practices that, when one of our finest science writers, Simon Singh, queried the evidence-base for their therapeutic claims they sued him for defamation. I suggest that the guidance group should look at the formidable list of people who are supporting Singh, after his brave decision to appeal against an illiberal court ruling in this iniquitous persecution.
One wonders whether this bizarre decision by NICE has anything to do with the presence on the guidance group of Peter Dixon, chair of the General Chiropractic Council. I am also curious to know why it is that when I telephoned two of the practices belonging to Peter Dixon Associates, I was told that chiropractic could be effective in the treatment of infantile colic and asthma. Similar claims about treating colic have just been condemned by the Advertising Standards Authority.
The low back pain guidance stands a good chance of destroying NICE’s previously excellent reputation for dispassionate assessment of benefits and costs. Yes, that is indeed a landmark of sorts.
If NICE is ever to recover its reputation, I think that it will have to start again. Next time it will have to admit openly that none of the treatments works very well in most cases. And it will have to recognise properly the disastrous cultural consequences of giving endorsement to people who, instead of engaging in scientific debate, resort to legal intimidation.
Bait and switch. Oh dear, oh dear. Just look at this. British Chiropractic Association tell their members to hide their sins from prying eyes.
Excellent round-up of the recent outburst of writing about “chiroquacktic” (Tut, tut, is there no respect?).
Dr Crippen writes “NICE recommends a cure for all known disease” [Ed some exaggeration, surely]
First the MHRA lets down the public by allowing deceptive labelling of sugar pills (see here, and this this blog). Now it is the turn of NICE to betray its own principles.
The National Institute for Health and Clinical Excellence (NICE) describes its job thus
“NICE is an independent organisation responsible for providing national guidance on promoting good health and preventing and treating ill health.”
Its Guidance document on Low Back Pain will be published on Wednesday 27 May 2009, but the newspapers have already started to comment, presumably on the assumption that it will have changed little from the Draft Guidance of September 2008. These comments may have to be changed as soon as the final version becomes available.
The draft guidance, though mostly sensible, has two recommendations that I believe to be wrong and dangerous. The recommendations include (page 7) these three.
- Consider offering a course of manual therapy including spinal manipulation of up to 9 sessions over up to 12 weeks.
- Consider offering a course of acupuncture needling comprising up to 10 sessions over a period of up to 12 weeks.
- Consider offering a structured exercise programme tailored to the individual.
All three of this options are accompanied by a footnote that reads thus.
“A choice of any of these therapies may be offered, taking into account patient preference.”
On the face if it, this might seem quite reasonable. All three choices seem to be about as effective (or ineffective) as each other, so why not let patients choose between them?
Actually there are very good reasons, but NICE does not seem to have thought about them. In the past I have had a high opinion of NICE but it seems that even they are now getting bogged down in the morass of political correctness and officialdom that is the curse of the Department of Health. It is yet another example of DC’s rule number one.
Never trust anyone who uses the word ‘stakeholder’.
They do use it, often.
So what is so wrong?
For a start, I take it that the reference to “spinal manipulation” in the first recommendation is a rather cowardly allusion to chiropractic. Why not say so, if that’s whar you mean? Chiropractic is mentioned in the rest of the report but the word doesn’t seem to occur in the recommendations. Is NICE perhaps nervous that it would reduce the credibility of the report if the word chiropractic were said out loud?
Well, they have a point, I suppose. It would.
That aside, here’s what’s wrong.
The Evidence
I take as my premise that the evidence says that no manipulative therapy has any great advantage over the others. They are all more or less equally effective. Perhaps I should say, more or less equally ineffective, because anyone who claims to have the answer to low back pain is clearly deluded (and I should know: nobody has fixed mine yet). So for effectiveness there are no good grounds to choose between exercise, physiotherapy, acupuncture or chiropractic. There is, though, an enormous cultural difference. Acupuncture and chiropractic are firmly in the realm of alternative medicine. They both invoke all sorts of new-age nonsense for which there isn’t the slightest good evidence. That may not poison your body, but it certainly poisons your mind.
Acupuncturists talk about about “Qi”, “meridians”, “energy flows”. The fact that “sham” and “real” acupuncture consistently come out indistinguishable is surely all the evidence one needs to dismiss such nonsense. Indeed there is a small group of medical acupuncturists who do dismiss it. Most don’t. As always in irrational subjects, acupuncture is riven by internecine strife between groups who differ in the extent of their mystical tendencies,
Chiropractors talk of “subluxations”, an entirely imaginary phenomenon (but a cause of much unnecessary exposure to X-rays). Many talk of quasi-religious things like “innate energy”. And Chiropractic is even more riven by competing factions than acupuncture. See, for example, Chiropractic wars Part 3: internecine conflict.
The bait and switch trick
This is the basic trick used by ‘alternative therapists’ to gain respectability.
There is a superb essay on it by the excellent Yale neurologist Steven Novella: The Bait and Switch of Unscientific Medicine. The trick is to offer some limited and reasonable treatment (like back manipulation for low back pain). This, it seems, is sufficient to satisfy NICE. But then, once you are in the showroom, you can be exposed to all sorts of other nonsense about “subluxations” or “Qi”. Still worse, you will also be exposed to the claims of many chiropractors and acupuncturists to be able to cure all manner of conditions other than back pain. But don’t even dare to suggest that manipulation of the spine is not a cure for colic or asthma or you may find yourself sued for defamation. The shameful legal action of the British Chiropractic Association against Simon Singh (follow it here) led to an addition to DC’s Patients’ Guide to Magic Medicine.
(In the face of such tragic behaviour, one has to be able to laugh).
Libel: A very expensive remedy, to be used only when you have no evidence. Appeals to alternative practitioners because truth is irrelevant.
NICE seems to have fallen for the bait and switch trick, hook line and sinker.
The neglected consequences
Once again, we see the consequences of paying insufficient attention to the Dilemmas of Alternative Medicine.
The lying dilemma
If acupuncture is recommended we will have acupuncturists telling patients about utterly imaginary things like “Qi” and “meridians”. And we will have chiropractors telling them about subluxations and innate energy. It is my opinion that these things are simply make-believe (and that is also the view of a minority of acupuncturist and chiropractors). That means that you have to decide whether the supposed benefits of the manipulation are sufficient to counterbalance the deception of patients.
Some people might think that it was worth it (though not me). What is unforgivable is not to consider even the question. The NICE guidance says not a word about this dilemma. Why not?
The training dilemma
The training dilemma is even more serious. Once some form of alternative medicine has successfully worked the Bait and Switch trick and gained a toehold in the NHS, there will be an army of box-ticking HR zombies employed to ensure that they have been properly trained in “subluxations” or “Qi”. There will be quangos set up to issue National Occupational Standards in “subluxations” or “Qi”. Skills for Health will issue “competences” in “subluxations” or “Qi” (actually they already do). There will be courses set up to teach about “subluxations” or “Qi”, some even in ‘universities’ (there already are).
The respectability problem
But worst of all, it will become possible for aupuncturists and chiropractors to claim that they now have official government endorsement from a prestigious evidence-based organisation like NICE for “subluxations” or “Qi”. Of course this isn’t true. In fact the words “subluxations” or “Qi” are not even mentioned in the draft report. That is the root of the problem. They should have been. But omitting stuff like that is how the Bait and Switch trick works.
Alternative medicine advocates crave, above all, respectability and acceptance. It is sad that NICE seems to have given them more credibility and acceptance without having considered properly the secondary consequences of doing so,
How did this failure of NICE happen?
It seems to have been a combination of political correctness, failure to consider secondary consequences, and excessive influence of the people who stand to make money from the acceptance of alternative medicine.
Take, for example, the opinion of the British Pain Society. This organisation encompasses not just doctors. It
includes “doctors, nurses, physiotherapists, scientists, psychologists, occupational therapists and other healthcare professionals actively engaged in the diagnosis and treatment of pain and in pain research for the benefit of patients”. Nevertheless, their response to the draft guidelines pointed out that the manipulative therapies as a whole were over-represented.
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Manipulation The guidelines assess 9 large groups of interventions of which manual therapies are only one part. The full GDG members panel of 13 individuals included two proponents of spinal manipulation/mobilisation (P Dixon and S Vogel). In addition, the chair of the panel (M Underwood) is the lead author of the UKBEAM trial on which the positive recommendation for |
It seems that the Pain Society were quite right.
LBC 97.3 Breakfast Show (25 May 2009) had a quick discussion on acupuncture (play mp3 file). After I had my say, the other side was put by Rosey Grandage. She has (among other jobs) a private acupuncture practice so she is not quite as unbiassed as me). As usual, she misrepresents the evidence by failing to distinguish between blind and non-blind studies. She also misrepresented what I said by implying that I was advocating drugs. That was not my point and I did not mention drugs (they, like all treatments, have pretty limited effectiveness, and they have side effects too). She said “there is very good evidence to show they (‘Qi’ and ‘meridians’] exist”. That is simply untrue.
There can’t be a better demonstration of the consequences of falling for bait and switch than the defence mounted by Rosey Grandage. NICE may not mention “Qi” and “meridians”; but the people they want to allow into the NHS have no such compunctions.
I first came across Rosey Grandage when I discovered her contribution to the Open University/BBC course K221. That has been dealt with elsewhere. A lot more information about acupuncture has appeared since then. She doesn’t seem to have noticed it. Has she not seen the Nordic Cochrane Centre report? Nor read Barker Bausell, or Singh & Ernst? Has she any interest in evidence that might reduce her income? Probably not.
Where to find out more
An excellent review of chiropractic can be found at the Layscience site. It was written by the indefatigable ‘Blue Wode’ who has provided enormous amounts of information at the admirable ebm-first site (I am authorised to reveal that ‘Blue Wode’ is the author of that site). There you will also find much fascinating information about both acupuncture and about chiropractic.
I’m grateful to ‘Blue Wode’ for some of the references used here.
Follow-up
Shortly after I published my editorial in the New Zealand Medical Journal, Dr Who?, I was delighted to get a letter from someone who had trained in chiropractic and seen it all from the inside.
Sadly this wonderful letter had to be removed within a few weeks of posting it because its author was threatened and bullied by chiropractors. Its author is too young and too vulnerable to risk his future career. As a result of this shameful and vindictive treatment, I was asked to remove the letter and did so immediately. Other copies on the web have now vanished too.
The experiences described in the letter justified much of what I said in the editorial, and in some ways went further. This letter doubtless contributed to dropping of the threatened legal action by chiropractors against the Journal and against me. The letter was posted originally on 21 August 2008, with the permission of its author. See also the follow-up in Chiropractic wars. Part 3: internecine conflict.
Now I have been sent a much more anonymous version, and it is a great pleasure to post this inside information.
| David
I must begin by stating my background in relation to chiropractic. I am a graduate of a chiropractic college and have practiced for several years. I have elected not to register or practice again and have returned to study to begin a new career. Prior to studying chiropractic, I gained undergraduate and postgraduate qualifications in science. First I would like to address your comment about the validity of a qualification from a private chiropractic college, especially in relation to the difference between studying there and studying at a university. A major difference is the education and experience of faculty. At the time I was there, most of the faculty at my college had only undergraduate qualifications (I would suggest that the American DC degree is of undergraduate level as it is the primary qualifying degree for chiropractic in the US and Canada -it is not the equivalent of a doctorate in a British or Australasian university) and have not published in peer-reviewed journals. This is quite different to my experience of universities where the all of the faculty usually have at least a PhD and are actively involved in research. The content of the chiropractic curriculum was voluminous. It included basic sciences, chiropractic subjects and social sciences. The college I attended did not have any laboratory facilities so the experience of learning science from a textbook was quite different to the way I had been taught at university, where each subject had a significant laboratory program that had to be passed separately to pass the subject. As chiropractic is a clinical discipline, the course contained subjects in common with a medical degree. Sadly, the attitude towards medicine and the medical profession was not always the most constructive. For example, I can recall a noticeboard where newspaper clippings of media reports of medical misadventure and adverse effects of pharmaceuticals were posted regularly. Clinical experience was gained by a 2 year internship in the school health centre concurrent with the last 2 years of academic study; so it was not a full-time internship. The requirements for passing this component of the course were complex but centred around seeing a number of patients, a number of visits, performing a number of various kinds of x-rays and reading a number of x-ray films. Every student was responsible for finding all of their own patients to meet the requirements. The result of this was a clinical experience that was quite narrow for most people. This would seem to be quite different to the hospital internship of a medical degree, the clinical internship of a dental degree or the range of placements in a physiotherapy degree in terms of the breadth of experience of different kinds of patients of different ages and states of health. For people who are not aware, there are a range of ideas within chiropractic about what it is and what it is for. The “wellness”, subluxation-based kind of chiropractic is taught by a minority of schools and is what chiropractors call a “philosophical view”. It advocates that chiropractic care be independent from symptoms or treatment and be a regular part of peoples’ lives. The expectation is that healthy, asymptomatic people will be “adjusted” on a regular basis to keep them free from “vertebral subluxation”. To that end, the training at schools that teach this approach is adequate (and probably even excessive). The issue that you wrote about related to the use of the title “doctor” by chiropractors in New Zealand. In licensing chiropractors and allowing them the use of the title “Dr” in front of their names (provided that the title is qualified by the word “chiropractor”) governments have awarded chiropractors with recognition and prestige that has usually been associated with a level of academic achievement or with a medical qualification. It indicates that the bearer of the title can be trusted to give credible advice within their area of expertise. The issue may seem benign, but in allowing chiropractors to use the title, people who would not normally feel safe to submit to the treatment of an alternative health practitioner, choose to try chiropractic. I make this point because at its core, chiropractic is quite different to medicine, dentistry and physiotherapy. A chiropractic office often looks like a lot like a doctor’s surgery. The layout is similar (with waiting rooms and consultation rooms; there are things like stethoscopes and x-ray machines and there are often informative and education posters and brochures. In many cases, the title “doctor” is used in I have found that some people believe chiropractors are medical doctors. Some even believe that chiropractic is a kind of medical speciality. I have seen patients who choose chiropractic as their primary health care and come to a chiropractic office as their first port of call when they are unwell. I Two practices are of particular concern in some chiropractic offices and in my view; these alone should be sufficient reason to prevent chiropractors from calling themselves “doctor”. The first is the systematic and deliberate erosion of a person’s confidence in the medical system. Many offices have anti medical literature in their libraries. Chiropractors are sometimes taught practices to subvert medical credibility. See http://chirobase.org/20PB/top7.html for an example. The second is a subset of the first but is particularly damaging. It is active opposition to vaccination. At chiropractic school, I was taught anti-vaccination information in my paediatrics course. I have seen books written by chiropractors opposing vaccination and I have seen many offices with anti vaccination leaflets and books in abundance. Now I am all for informed choice but this type of material is rarely accurate or balanced. People are being encouraged not to vaccinate their children by professionals who they believe to be a reliable and prestigious source of information. Although it may sound paternalistic to people who have not had the privilege of clinical practice (albeit in a profession I no longer agree with), it made me realise several things. The first is that people who are unwell are vulnerable. The second is that there are people who trust “medical” advice unquestioningly. I believe we should be very careful about who we title as a credible source of advice about health care. Legislation treads a fine line between limiting personal freedom and protecting people from harm. Aside from the qualification being inconsistent with the academic level that is usually required to use the title “Doctor”, the greatest danger, in my opinion, is that the legal recognition and permission to use the title has allowed chiropractors to assume the mantle of a doctor. In the guise of this respectability, some chiropractors are deliberately eroding confidence in doctors and denying children (and possibly populations) the protection of vaccination. David, thank you for having the courage to question the use of the title “doctor” by chiropractors. Historically (and in your case), chiropractors fight their battles through litigation so it takes personal courage and integrity to do so. |
All I can say is, don’t thank me. It doesn’t take much courage at my age. It takes a lot at yours and the world should be grateful to you.
Replies from chiropractors in the NZMJ
The New Zealand Medical Journal, very properly, allowed right of reply to chiropractore. This week’s issue contains three letters, one of which is from Paul Kelly. It is signed “Dr Brian Kelly B App Sci (Chiro), President, New Zealand College of Chiropractic”. This is not quite the same as appears on his College’s web site which shows the president’s welcome.
It seems that Kelly has not been quite so careful about use of his title on the web site because (as of 21 August) the signature on his address looks like this.
“Dr Brian Kelly, President”. That does seem a bit careless, given that his usage of “Dr” was pointed out in my original editorial, published on 25th July.
Replies to these letters appeared in the September 5th issue of NZMJ.
The publication of Gilbey’s paper and my editorial in the New Zealand Medical Journal (NZMJ) led to a threat of legal action by the NZ Chiropractors’ Association Inc for alleged defamation. After publishing a defiant editorial, the editor of the NZMJ offered chiropractors the chance to put their case.
In the last issue of NZMJ (22 Aug 2008) three letters appeared. One was from Brian Kelly, (President, New Zealand College of Chiropractic) [download letter]. One was from Karl Bale (CEO/Registrar, Chiropractic Board New Zealand) [download letter], and one was from Simon Roughan (Registered Chiropractor and Acting President of the New Zealand Chiropractors’ Association) [download letter].
In the current issue (5 September 2008) Gilbey, Ernst and I responded.{download Gilbey response] [download Ernst response].
Here’s mine. The printed version differs in minor ways [download pdf]
| I’m grateful for the opportunity to reply to the defences of chiropractic from Kelly1, Roughan2 and Bale3 in your last issue.
I’d like first to deal with the minor matter of titles, before getting on to the more important question of vidence. I notice that Brian Kelly signs his letter “Dr Brian Kelly B App Sci (Chiro)” in his letter to NZMJ. He seems to be a bit less careful in his use of titles on his own school’s web site where his president’s welcome4 is signed simply “Dr Brian Kelly”, a title he adopts in at least three other places. Karl Bale3 (CEO/Registrar, Chiropractic Board New Zealand) points out that “Failure to qualify the use of the title ‘Doctor’ may contravene the provisions of the Medical Practitioners Act 1995”. One wonders whether Bale has done anything to stop Kelly’s apparent breaches of this rule? This example makes on wonder whether the Chiropractic Board take its responsibilities seriously? It seems often to be the case that ‘voluntary self-regulation’ doesn’t work, because there are too many vested interests. Karl Bale points out that some ruthless sales methods characteristic of chiropractic are also contrary to the Chiropractic Board’s code of ethics. One would hope their well-known antipathy to vaccination and to medicine as a whole were also considered unethical. These practices seem to continue so the the code of ethics It seems to me quite remarkable that none of the letters mentions the ‘subluxation’ that lies at the heart of their subject6. Could that be because they are reluctant to admit openly that it is a mere metaphysical concept, that no one can see or define? It is sad that so many patients are subjected to X-rays in search of this phantom idea. It is this metaphysical nature of chiropractic that separates it quite clearly from science. Brian Kelly says “How can any reader take seriously, anything suggested by a writer who opines that a 19th Century journalist possessed superior “intellectual standards” to “the UK’s Department of Health” and “several university vice chancellors”. The views of the Davenport Leader on chiropractic were mild compared with those of the great H.L. Mencken (1924)7 who wrote “This preposterous quackery flourishes lushly in the back reaches of the Republic, and begins to conquer the less civilized folk of the big cities….” The problem is that the Department of Health is full of arts graduates who may be very good at classics but can’t understand the nature of evidence. And the UK has one vice-chancellor, a geomorphologist, who defends a course in his university that teaches that “amethysts emit high yin energy”8 I’ll admit, though, that perhaps ‘intellect’ is not what’s deficient in this case, but rather honesty. Your correspondents seem to confuse the duration of a course with its intellectual content. You can study homeopathy for years too, but after all that they are still treating sick people with medicines that contain no medicine. Anyone who works in a university knows that you can easily get accreditation for anything whatsoever if you choose the right people to sit on the committee. I have seen only too many of these worthless pieces of paper. “Amethysts emit high yin energy”8 was part of an accredited course (at the University of Westminster) too. Need I say more? Now to the real heart of the problem, namely the question of evidence. Brian Kelly says that the book by Singh and Ernst9 shows “extreme bias”, but what that book actually shows is an extremely scrupulous regard for evidence, Ernst is in a better position to do this than just about anyone else. He has qualified and practised both regular and alternative medicine, and he was appointed to his present position, as professor of complementary and alternative medicine to assess the evidence. Perhaps most importantly of all, his position allows him to do that assessment with complete lack of bias because, unlike Kelly, his livelihood does not depend on any particular outcome of the assessment. I’m afraid that what Kelly describes as “extreme bias” is simply a display of pique because it has turned out that when all the evidence is examined dispassionately, the outcome is not what chiropractors hoped. The fact of the matter is that when you look at all of the evidence, as Singh & Ernst do, it is perfectly clear that chiropractic is at best no better than conventional treatments even for back pain. For all other conditions its benefits fail to outweigh its risks – contrary to the many claims by chiropractors. Both the New Zealand and the UK governments have got themselves into an impossible position by giving official recognition to chiropractic before the evidence was in. Since the conventional manipulative treatments are cheaper, and may be well be safer, and because they involve no quasi-religious ideas like “subluxation” or “innate intelligence”, the only reasonable conclusion is that there is no need for chiropractic to exist at all. They do nothing they do that could not be done as well by medical practitioners and physiotherapists. What will governments do about that, I wonder? David Colquhoun 1. Kelly, B. New Zealand College of Chiropractic response to 2. Roughan, S. Setting the record straight: New Zealand Chiropractors’ Association response letter. NZMJ 22 3. Bale, 4. http://www.nzchiro.co.nz/about_president.php 6. http://www.chirobase.org/01General/chirosub.html 7. http://www.geocities.com/healthbase/mencken_chiro.html 8. http://dcscience.net/?p=227 9. Singh S, Ernst E. Trick or Treatment. Bantam Press; 2008 |
The wars within chiropractic
Although the chiropractors seem to be rather upset by the criticisms that have been levelled against them, the most interesting war is not between chiropractors and people who think that medicine should not be based on metaphysics. It’s the war within chiropractic itself.
The internecine wars within chiropractic have been going almost from the day it was invented. The (ex-)insider’s view gives us a rare insight into what chiropractic schools actually do. Now support has come from a rather unexpected quarter. An article by five chiropractors has just appeared by Murphy et al. (Chiropractic & Osteopathy, 2008, 16:10).
Although the authors declare that they have “a financial interest in the success” of chiropractic, the changes that they propose are so drastic that, if implemented, tthey would leave little left to distinguish chiropractic from, say, physiotherapy. The authors ask the very pertinent question, ‘why is it that podiatry (chiropody in the UK) is well accepted and chiropractic remains on the controversial fringe of medicine?.. Here are some quotations.
“It is also vital that those chiropractors who dogmatically oppose common public health practices, such as immunization [15] and public water fluoridation, cease such unfounded activity.”
“We are concerned that the common perception (which is well supported, in our experience) that chiropractors are only interested in “selling” a lifetime of chiropractic visits may be one of the primary factors behind our low standing in the minds of members of the public [2].”
“One of the problems that we encounter frequently in our interaction with chiropractic educational institutions is the perpetuation of dogma and unfounded claims. Examples include the concept of spinal subluxation as the cause of a variety of internal diseases and the metaphysical, pseudo-religious idea of “innate intelligence” flowing through spinal nerves, with spinal subluxations impeding this flow. These concepts are lacking in a scientific foundation [27] [28] [29] and should not be permitted to be taught at our chiropractic institutions as part of the standard curriculum. Much of what is passed off as “chiropractic philosophy” is simply dogma [30], or untested (and, in some cases, untestable) theories [27] which have no place in an institution of higher learning, except perhaps in an historical context.”
“The Council on Chiropractic Education requirement of 250 adjustments forces interns to use manipulation on patients whether they need it or not, and the radiographic requirement forces interns to take radiographs on patients whether they need them or not.”
“They [podiatrists] did not invent a “lesion” and a “philosophy” and try to force it on the public. They certainly did not claim that all disease arose from the foot, without any evidence to support this notion. The podiatric medical profession simply did what credible and authoritative professions do [32] – they provided society with services that people actually wanted and needed.”
“In the beginning, DD Palmer invented a lesion, and a theory behind this lesion, and developed a profession of individuals who would become champions of that lesion. This is not what credible professions do.”
“In the interim it [chiropractic] has seen its market share dwindle from 10% of the population [4] to 7.5% [3] [42]. Even amongst patients with back pain, the proportion of patients seeing chiropractors dropped significantly between 1987 and 1997, a period of time in which the proportion seeing both medical doctors and physical therapists increased [43].”
“When an individual consults a member of any of the medical professions, it is reasonably expected that the advice and treatment that he or she receives is based in science, not metaphysics or pseudoscience.”
“The chiropractic profession has an obligation to actively divorce itself from metaphysical explanations of health and disease as well as to actively regulate itself in refusing to tolerate fraud, abuse and quackery, which are more rampant in our profession than in other healthcare professions [46].”
“Podiatric medicine is a science-based profession dedicated to the diagnosis and treatment of foot disorders. Foot reflexology is a metaphysically-based group consisting of non-physicians who believe that many physical disorders arise from the foot. Podiatrists have rejected foot reflexology as an unproven and unscientific practice, and do not consider it part of mainstream podiatric practice.”
“We must finally come to the painful realization that the chiropractic concept of spinal subluxation as the cause of “dis-ease” within the human body is an untested hypothesis [27]. It is an albatross around our collective necks that impedes progress.”
All this, remember, comes from five chiropractors. That looks like all out war between their view of chiropractic and that taught in New Zealand College of Chiropractic, and, in the UK by the three chiropractic colleges in the UK.
Follow-up
A report in the New Zealand Herald (18 September 2008) is rather relevant to all this.
Chiropractor to apologise after patient has stroke
A chiropractor has been recommended to apologise to a woman patient who suffered a stroke after he treated her.
The case report is here.
The Advertising Standards Authority has had a bit to say about chiropractors too.
An editorial in today’s issue of the New Zealand Medical Journal prints in full a letter sent to the Journal by Paul Radich, a lawyer who acts for the New Zealand Chiropractors’ Association Inc and its members. The letter alleges defamation by Andrew Gilbey’s article, and by my editorial which sets the wider context of his paper. The articles in question are here.
Here are some quotations from the Editorial by the Journal’s editor, Professor Frank A Frizelle, Department of Surgery, Christchurch Hospital, NZ. [Download the whole editorial].
| In the article by Gilbey, data is provided about use of inappropriate titles by New Zealand practitioners of acupuncture, chiropractic, and osteopathy while the greater context is provided by Colquhoun. The comments made by Paul Radich are entirely consistent with the response as expressed by Professor Edzard Ernst (Editor-in-Chief of Focus on Alternative and Complementary Medicine (FACT) and Chair in Complementary Medicine at the University of Exeter) in his humorous article In praise of the data-free discussion. Towards a new paradigm5 when he states “data can be frightfully intimidating and non-egalitarian”. . . . The Journal has a responsibility to deal with all issues and not to steer clear of those issues that are difficult or contentious or carry legal threats. Let the debate continue in the evidence-based tone set by Colquhoun and others. I encourage, as we have done previously, the chiropractors and others to join in, let’s hear your evidence not your legal muscle. |
My article said nothing that has not been said many times before. I regard it as fair scientific comment, and I believe that expression of those opinions is in the public interest, The reaction of the Journal is thoroughly admirable.
The outcome of legal bullying can be very counterproductive, as the UK’s Society of Homeopaths found recently to their cost.
The lawyers’ letter demanded a response by 11th August, but in the advice of a lawyer I have decided to ignore for now this rather crude attempt to stifle discussion.
For further developments, watch this space.
The story was picked up within hours, It seems that a storm may be brewing round the world for New Zealand Chiropractors. Here are some of them.
Silence Dissent Ben Goldacre’s badscience,net
HolfordWatch Professor Frizelle’s Instant Classic: Let’s hear your evidence not your legal muscle
The first New Zealand site.
More Legal Chill -from spine-cracking chiropractors on jdc325’s blog
And A beginners guide to chiropractic, on the same site.
Andy Lewis’s Quackometer takes a sharp look too, in They are bone doctors aren’t they?
Support from a NZ blog, Evidence-based thought NZ Chiropractors vs NZ Medical Journal
And another New Zealand blog, Chiropractors attack NZ Medical Journal on SillyBeliefs.com
and another: Evidence should trump “legal muscle”, on “Open Parachute. The mind doesn’t work if it’s closed”
New Zealand Doctor magazine. “Kiwi-practors legal wrangle” in the Nature world news blog, The Great Beyond.
“Self-destructing chiropractors” on Jonathan Hearsay’s blog is particularly interesting because he is a (sceptical) osteopath. He says “Chiropractors are seemingly hell-bent on destroying themselves as a therapy”.
There are now so many allusions on the web to the behaviour of the New Zealand Chiropractors’ Association Inc that I’ll give up trying to list all of them. Their action seems tp have done much to damage their own reputation.
Shortly after this came the news that the British Chiropractic Association is to sue one of out best science communicators, Simon Singh, because he had the temerity to inspect the evidence and give his opinion about it in the Guardian. His original article has gone (for now) from the Guardian web site, but as always happens with attempts at bullying and intimidation, it is more easily available then ever, For example here, and here.
Chiropractic in the UK is analysed by Andy Lewis on Quackometer,