Download Lectures on Biostatistics (1971).
Corrected and searchable version of Google books edition

Download review of Lectures on Biostatistics (THES, 1973).

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Jump to follow-up

The offering of quack cancer treatments at an exorbitant price is simple cruelty. The nature of the Burzynski clinic has been known for some time. But it has come to a head with some utterly vile threatening letters sent to the admirable Andrew Lewis, because he told a few truths about Stanislaw Burzynskis despicable outfit. Please read his original post, The False Hope of the Burzynski Clinic.

I have to add by two-pennorth worth to the row that has blown up in the blogosphere at the outrageous behaviour of Burzynski. I hope other bloggers will do the same. There is safety in numbers. We need a Streisand effect to face down these pathetic bullies. It’s the "I am Spartacus" principle.

I won’t repeat all the details. They have spread like wildfire round the web. Briefly, it was sparked off by tragic case of a 4-year old girl, Billie Bainbridge who has a rare form of brain cancer. Well-intentioned pop stars have been trying to raise £200,000 to "enrol her into a clinical trial" at Burzynski clinic in Texas, despite the fact that Dr Stanislaw Burzynski has already been on trial for cancer fraud. In fact his clinic is not allowed to treat cancer patients, but it has evaded that ban, for many years, by pretending to run clinical trials. Normally patients volunteer for clinical trials. Sometimes they are paid a modest amount. Never, in the civilised world, are people asked to pay hundreds of thousands of pounds to be a guinea pig. Dorothy Bishop has written about The Weird World of US ethics regulation.

There is nothing new about this. The Cancerbusters site won the Anus Maximus Award for the year 2000. The award was announced in the following words:

The top award this year goes to the acolytes of Dr Stanislaw Burzynski who have created an advertising site at www.cancerbusters.com using a five-year-old boy named Thomas Navarro. Thomas is dying of cancer and this site exploits that tragedy to try and get the law changed so that quacks can have the untrammelled right to deceive desperate, sick people by promising them magic cures for cancer, AIDS and other diseases for which no cure is yet available. While this site is specifically a Burzynski promotion, his competitors support the site and mention it because if the campaign is successful it will dramatically increase the size of the market for quackery and therefore their opportunities to make money. [The boy died in November 2001]

The letters sent to Andrew Lewis are unspeakably nasty. They come from someone who calls himself "Marc Stephens" who claims to represent the company.

Le Canard Noir / Andy Lewis,

I represent the Burzynski Clinic, Burzynski Research Institute, and Dr. Stanislaw Burzynski.  It has been brought to our attention that you have content on your websites http://www.quackometer.net/blog/2011/11/the-false-hope-of-the-burzynski-clinic.html that is in violation of multiple laws.

Please allow this correspondence to serve as notice to you that you published libelous and defamatory information.  This correspondence constitutes a demand that you immediately cease and desist in your actions defaming and libeling my clients.

Please be advised that my clients consider the content of your posting to be legally actionable under numerous legal causes of action, including but not limited to: defamation Libel, defamation per se, and tortious interference with business contracts and business relationships. The information you assert in your article is factually incorrect, and posted with either actual knowledge, or reckless disregard for its falsity.

The various terms you use in your article connote dishonesty, untrustworthiness, illegality, and fraud.  You, maliciously with the intent to harm my clients and to destroy his business, state information which is wholly without support, and which damages my clients’ reputations in the community. The purpose of your posting is to create in the public the belief that my clients are disreputable, are engaged in on-going criminal activity, and must be avoided by the public.

You have a right to freedom of speech, and you have a right to voice your opinion, but you do not have the right to post libelous statements regardless if you think its your opinion or not.  You are highly aware of defamation laws. You actually wrote an article about defamation on your site.  In addition, I have information linking you to a network of individuals that disseminate false information.  So the courts will apparently see the context of your article, and your act as Malicious.  You have multiple third parties that viewed and commented on your article, which clearly makes this matter defamation libel. Once I obtain a subpoena for your personal information, I will not settle this case with you.  Shut the article down IMMEDIATELY.



Marc Stephens
Burzynski Clinic
9432 Katy Freeway
Houston, Texas 77055

Then later, at the end of another “foam-flecked angry rant”

. . .

If you had no history of lying, and if you were not apart of a fraud network I would take the time to explain your article word for word, but you already know what defamation is.    I’ve already recorded all of your articles from previous years as well as legal notice sent by other attorneys for different matters.  As I mentioned, I am not playing games with you.  You have a history of being stubborn which will play right into my hands.  Be smart and considerate for your family and new child, and shut the article down..Immediately.  FINAL WARNING.


Marc Stephens

Despite the attempt at legal style, "Marc Stephens" is not registered as an attorney in Texas.

Andy Lewis did not yield to this crude bullying. His post is still there for all to read. Before the days of the internet he would have been on his own. But now already dozens of blogs have drawn attention to what’s going on. Soon it will be hundreds. Burzynski can’t sue all of us. It’s the Streisand effect, or the "I am Spartacus" response.

Come on. Marc Stephens, make my day.

Some notes on the science

The Burzynski treatment is piss. Literally. A mixture of substances extracted from the patient’s own urine is dubbed with the preoposterous pseudoscientific name "antineoplastons". There are no such things as "neoplastons". And the chemicals are now made in the lab like any other drug.

The main component seems to be a simple organic chemical, phenylacetic acid (PA). It is produced in normal metabolism but the liver copes with it by converting it to phenylacetyl glutamine (PAG), which is excreted in the urine.

Saul Green has summarised the evidence

Burzynski has never demonstrated that A-2.1 (PA) or “soluble A-10” (PA and PAG) are effective against cancer or that tumor cells from patients treated with these antineoplastons have been “normalized.” Tests of antineoplastons at the National Cancer Institute have never been positive. The drug company Sigma-Tau Pharmaceuticals could not duplicate Burzynski’s claims for AS-2.1 and A-10. The Japanese National Cancer Institute has reported that antineoplastons did not work in their studies. No Burzynski coauthors have endorsed his use of antineoplastons in cancer patients.

Cancer Research UK has a summary of the current evidence, Hope or false hope?

Despite it being illegal to advertise cancer cures in most country, the list of people who flout the law to make money from the desperate is enormous/ You can find a list of them at Quackwatch. Burzynski isn’t the only one but he could well be the most expensive.

Latest developments

You can follow the ever-growing list of publications by people who are determined to resist Burzynski at Josephine Jones "Stanislaw, Streisand and Spartacus". There is also a list at anarchic_teapot’s blog


Saturday 26 November Another frothy threat from Burzynski’s alleged representative. Lot’s of RED ARROWS.

Monday 28 November The Streisand effect is developing rapidly. The definitive lists of posts are here and here. But there are two that I must mention.

Today Rhys Morgan has published Threats from The Burzynski Clinic. The same “Marc Stephens” has made the same sort of threats against him as he made against Lewis. Rhys Morgan is still at school, and is now 17 years old. He was the hero of the MMS scandal.

David Gorski, a real oncologist, has gone into the evidence in excellent detall with Stanislaw Burzynski: Bad medicine, a bad movie, and bad P.R.

free debate. Sign at http://libelreform.org/

Freedom of speech in everyday life is a beautiful and hard-won fundamental liberty. I can say what I like about the prime minister and the royal family. There will be no knock on the door in the night.

Bur as a scientist, I cannot express an opinion on a scientific question freely. That is not, thank heavens, because of the government, the military or the police. It is because of a bunch of despicable lawyers who take advantage of an unjust law to make vast amounts of money. Do Carter-Ruck care if I’m made homeless and my son loses his education? They don’t give a damn.

The present libel law in the UK is a threat to journalists and, even more, to bloggers most of whom have little money. Still worse it endangers science itself. You cannot safely write an article in a scientific journal If your conclusions are unfavourable to a rich company, for fear that they will sue and you’ll end up sleeping in a tent.

The lie detector scandal

One good example concerns lie detectors. They don’t work and quite probably never will work. Nevertheless they sound like a very good idea to scientifically-illiterate government departments, police and military people. A recent report of the Lacerda case summarised the problem.

In 2007, Professor Lacerda and Anders Eriksson, of Gothenburg University, published an article entitled “Charlatanry in Forensic Speech Science” in the International Journal of Speech, Language and the Law. It criticised the science behind analysis technologies that purport to identify stressed voices, which may indicate lying.

One VRA system, designed by Nemesysco, an Israeli company, is being evaluated in 24 pilot studies by the DWP [Department of Work and Pensions], as a means of highlighting potential benefit fraud. The DWP has spent £2.4 million on the pilots, which are due to report back soon. Nemesysco threatened the journal with a libel action over the article, which was withdrawn from its website.

The system was tested properly. Like all others of its sort it didn’t work. That, no doubt, is bad for the income of the people who make it, Nemesysco,as it should be. But instead of the company being convicted for selling devices that don’t work, the company hired lawyers and forced the journal to withdraw the paper, on threat of destitution.

The current case of Dr Peter Wilmshurst

Peter Wilmshurst is a consultant cardiologist at the Royal Shrewsbury Hospital. Like any good doctor he likes to ensure that the tools of his trade actually work as advertised. The Times reported thus.


Dr Wilmshurt’s case began with his involvement in a study of a medical device made by NMT called Starflex, designed to close a type of hole in the heart known as a patent foramen ovale (PFO). The study investigated Starflex as a potential treatment for migraine, which is significantly more common among people with a PFO, but failed to find benefits.

At a cardiology conference in Washington in 2007, Dr Wilmshurst criticised NMT Medical in relation to the research. His comments were reported by Heartwire, a website, prompting NMT to sue him.

This sort of behaviour by a medical company is utterly disgraceful. One would think that the fact that their actions had made the company name, NMT Medical, a laughing stock might have inhibited them, but far from that working, they recently launched a second legal action against Wllmshurst. The details are given by the Health Watch web site, and by legal blogger Jack of Kent.

It is small consolation to Dr Wilmshurst, as he faces destitution, that a Google search for "NMT medical" brings up on the first page a link to More news of NMT Medical MIST Trial – false declarations. This provides an excellent report on the technicalities. It is on the Scientic Misconduct blog, written by Aubrey Blumsohn, who has himself suffered for being honest in the face of corporate misconduct (in his case the villains were the University of Sheffield, in particular Prof Richard Eastell, and Proctor and Gamble. see also this blog),

Boob job cream

The latest case concerns Plastic surgeon threatened for comment on ‘Boob Job’ cream. She’s been sued for doing her job by saying that a cream costing £125 per jar cannot, as claimed, increase your bust size.

Not content with threatening the surgeon. The company, Rodial Ltd. also threatened Sense About Science if they publicised the case. They haven’t yielded to that threat.

The company should be prosecuted by Trading Standards for making illegal false health claims. But Trading Standards don’t do their job. Instead another honest clinician faces ruin

My own brushes with lawyers

I have experienced myself the cold terror of getting a letter from lawyers. In my case it came from the New Zealand Chiropractic Association after I’d written an editorial for the New Zealand Medical Journal, Doctor Who? Deception by chiropractors. It got to the stage of wondering whether the house could be put solely in my wife’s name, but in this case, thanks to a feisty response from the Journal editor, the chiroquacks backed off.

This blog itself was born as a result of legal threats against UCL by a couple of herbalists who were cross because I described the term "blood cleanser" as gobbledygook. The fact that this is true was irrelevant. Tnanks to lots of publicity the outcome for me was good, a vast increase in readership.

What you can do

The present libel law in the UK is notoriously the most iniquitous and expensive in the world. It is a national disgrace. It isn’t a new problem. One of my predecessors in the Chair of Pharmacology at UCL, A. J. Clark, was forced to apologise for a perfectly true statement made in his 1938 book on Patent Medicines.

The government has promised to change it but a huge amount of work to be done to make sure it is changed to something more civilised. There are a lot more lawyers in government than scientists (well, about one scientist). There is good reason to think that they will try to subvert the changes that are needed.

Support the campaign run jointly by English PEN, Index on Censorship and Sense About Science.

Get every friend to sign the petition. Ask your students to sign it. Write to your MP. And ask your friends from every country to sign it. Anyone in the world can be sued in UK courts. The present UK law doesn’t endanger only UK science, but it endangers science, and honesty itself, over the globe.

Keep up the pressure for a sensible reform..

free debate. Sign at http://libelreform.org/



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.


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 TimesBay researcher slams television complaint ruling

Jump to follow-up

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.

JQHC title

JQHC reference

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.

JQHC quotation

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.

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.”
This would not be an issue at all if he had admitted it came from a blog site— but I guess the link would have eroded the credibility of the quote.

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.

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"


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.

Jump to follow-up

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 trap

Some 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


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.

Jump to follow-up

It’s good to see the BMJ joining the campaign for free speech (only a month or two behind the blogs). The suing of Simon Singh for defamation by the British Chiropractic Association has stirred up a hornet’s nest that could (one hopes) change the law of the land, and destroy chiropractic altogether. The BMJ’s editor, Fiona Godlee, has a fine editorial, Keep the libel laws out of science. She starts “I hope all readers of the BMJ are signed up to organised scepticism” and says

“Weak science sheltered from criticism by officious laws means bad medicine. Singh is determined to fight the lawsuit rather than apologise for an article he believes to be sound. He and his supporters have in their sights not only the defence of this case but the reform of England’s libel laws.”

Godlee refers to equally fine articles by the BMJ’s Deputy Editor, Tony Delamothe, Thinking about Charles II“, and by Editor in Chief, Harvey Marcovitch, “Libel law in the UK“.

free debate

The comments on Godlee’s editorial, show strong support, (apart from one from the infamous quantum fantasist, Lionel Milgrom). But there was one that slighlty surprised me, from Tricia Greenhalgh, author of the superb book, “How to read a paper”. She comments

“the use of the term ‘bogus’ seems both unprofessional and unscholarly. The argument would be stronger if expressed in more reserved terms”

That set me thinking, not for the first time, about the difference between journalism and scholarship. I can’t imagine ever using a word like ‘bogus’ in a paper about single ion channels. But Singh was writing in a newspaper, not in a scientific paper. Even more to the point, his comments were aimed at people who are not scholars and who, quite explicitly reject the normal standards of science and evidence. The scholarly approach has been tried for centuries, and it just doesn’t work with such people. I’d defend Singh’s language. It is the only way to have any effect. That is why I sent the following comment.

The ultimate irony is that the comment was held up by the BMJ’s lawyers, and has still to appear.

Thanks for an excellent editorial.

I doubt that it’s worth replying to Lionel Milgrom whose fantasy physics has been totally demolished by real physicists. Trisha Greenhalgh is, though, someone whose views I’d take very seriously. She raises an interesting question when she says “bogus” is an unprofessional word to use. Two things seem relevant.

First, there is little point in writing rational scholarly articles for a group of people who do not accept the ordinary rules of evidence or scholarship. We are dealing with fantasists. Worse still, we are dealing with fantasists whose income depends on defending their fantasies. You can point out to your heart’s content that “subluxations” are figment of the chiropractors’ imagination, but they don’t give a damn. They aren’t interested in what’s true and what isn’t.

Throughout my lifetime, pharmacologists and others have been writing scholarly articles about how homeopathy and other sorts of alternative medicine are bogus. All this effort had little effect.   What made the difference was blogs and investigative journalism.  When it became possible to reveal leaked teaching materials that taught students that “amethysts emit high yin energy“, and name and shame the vice-chancellors who allow that sort of thing to happen (in this case Prof Geoffrey Petts of Westminster University), things started to happen. In the last few years all five “BSc” degrees in homeopathy have closed and that is undoubtedly a consequence of the activities of bloggers and can assess evidence but who work more like investigative journalists. When the BCA released, 15 months after the event, its “plethora of evidence” a semi-organised effort by a group of bloggers produced, in less than 24 hours, thoroughly scholarly analyses of all of them (there is a summary here). As the editorial says, they didn’t amount to a hill of beans, They also pointed out the evidence that was omitted by the BCA. The conventional press just followed the bloggers. I find it really rather beautiful that a group of people who have other jobs to do, spent a lot of time doing these analyses, unpaid, in their own time, simply to support Singh, because they believed it is the right thing to do.

Simon Singh has analysed the data coolly in his book. But In the case that gave rise to the lawsuit he was writing in a newspaper. It was perfectly clear from the context what ‘bogus’ meant. but Mr Justice Eady (aided by a disastrous law) chose to ignore entirely the context and the question of truth. The description ‘bogus’. as used by Singh, seems to be entirely appropriate for a newspaper article. To criticise him for using “unprofessional” language is inappropriate because we are not dealing with professionals. At the heart of the problem is the sort of stifling political correctness that has resulted in quacks being referred to as “professions” rather than fantasists and fraudsters [of course I use the word fraudster with no implication that it necessarily implies conscious lying].

At least there are some laughs to be had from the whole sorry affair. Prompted by that prince among lawyers known as Jack of Kent there was a new addition to my ‘Patients’ Guide to Magic Medicine‘, as featured in the Financial Times.

Libel: A very expensive remedy, to be used only when you have no evidence. Appeals to alternative practitioners because truth is irrelevant.

It is, perhaps, misplaced political correctness that lies at the heart of the problem. Who can forget the letter from Lord Hunt, while he was at the Department of Health, in which he described “psychic surgery” (one of the best known fraudulent conjuring tricks) as a “profession”.


Two days later, the comment has appeared in the BMJ at last. But it has been altered a bit.

Unprofessional language is appropriate when dealing with unprofessional people

Thanks for an excellent editorial.

I doubt that it’s worth replying to Lionel Milgrom whose fantasy physics has been totally demolished by real physicists. Trisha Greenhalgh is, though, someone whose views I’d take very seriously. She raises an interesting question when she says “bogus” is an unprofessional word to use. Two things seem relevant.

First, there is little point in writing rational scholarly articles for a group of people who do not seem to accept the ordinary rules of evidence or scholarship. You can point out to your heart’s content that “subluxations” are figment of the chiropractors’ imagination, but they don’t give a damn.

Throughout my lifetime, pharmacologists and others have been writing scholarly articles about how homeopathy and other sorts of alternative medicine are bogus. All this effort had little effect. What made the difference was blogs and investigative journalism. When it became possible to reveal leaked teaching materials that taught students that “amethysts emit high yin energy”, and name and shame the vice-chancellors who allow that sort of thing to happen (in this case Prof Geoffrey Petts of Westminster University), things started to happen. In the last few years all five “BSc” degrees in homeopathy have closed and that is undoubtedly a consequence of the activities of bloggers and can assess evidence but who work more like investigative journalists. When the BCA released, 15 months after the event, its “plethora of evidence” a semi-organised effort by a group of bloggers produced, in less than 24 hours, thoroughly scholarly analyses of all of them (there is a summary here). As the editorial says, they didn’t amount to a hill of beans, They also pointed out the evidence that was omitted by the BCA. The conventional press just followed the bloggers. I find it really rather beautiful that a group of people who have other jobs to do, spent a lot of time doing these analyses, unpaid, in their own time, simply to support Singh, because they believed it is the right thing to do.

Simon Singh has analysed the data coolly in his book. But In the case that gave rise to the lawsuit he was writing in a newspaper. It was perfectly clear from the context what ‘bogus’ meant. but Mr Justice Eady (aided by a disastrous law) chose to ignore entirely the context. The description ‘bogus’. as used by Singh, seems to be entirely appropriate for a newspaper article. To criticise him for using “unprofessional” language is inappropriate because we are not dealing with professionals.

At least there are some laughs to be had from the whole sorry affair. Prompted by that prince among lawyers known as Jack of Kent there was a new addition to my ‘Patients’ Guide to Magic Medicine’, as featured in the Financial Times.

Libel: A very expensive remedy, to be used only when you have no evidence. Appeals to alternative practitioners because truth is irrelevant.

Here are the changes that were made. Hmm.very interesting.

changes made by lawyers

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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.
  • 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.


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?

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.

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). Simon Singh

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.

free debate

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


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]

Jump to follow-up

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
seems not to be enforced. Much the same is true in other forms of alternative medicine too5.

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
“Dr Who?” editorial.
NZMJ 22 August 2008, Vol 121 No 1280

2. Roughan, S. Setting the record straight: New Zealand Chiropractors’ Association response letter. NZMJ 22
August 2008, Vol 121 No 1280

3. Bale,
K. Chiropractic Board New Zealand response to “Dr Who?” editorial.
August 2008, Vol 121 No 1280.

4. http://www.nzchiro.co.nz/about_president.php

5. http://dcscience.net/?p=24

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.


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.

This was posted originally on the old IMPROBABLE SCIENCE page

UCL felled by a herbalist?

OK this isn’t really bad science, but it’s caused inconvenience to me and to readers. It still puzzles me that UCL has not got the resources to deal with a herbalist (the reason that I was given for the move). The herbalist in question, Ann Walker, got rather angry when I called her use of the term ‘blood cleanser’ as gobbledygook

On Friday 1 June, 2007, when it was announced that the IMPROBABLE SCIENCE page had been moved from the UCL server, several people sent letters to the provost. Here is one of them. I have never met Prof Shafer, but his letter, and other similar ones, lightened an otherwise bad day.

Dear Dr. Grant:I am very sorry to learn that you have requested Dr. Colquhoun to remove his “Improbable Science” web page from the computer system at University College London. It is particularly disheartening to learn that you made this request after receiving a complaint from a practitioner of nonscientific medicine.

I don’t know how many of your faculty publish in Nature (Colquhoun D. Science degrees without the science. Nature. 2007;446:373-4). However, based on my experience at Stanford, I would guess precious few. You now appear to be attempting to squelch his academic freedom, or at least disassociate UCL from his efforts to educate the public about quack science.

Perhaps you were put off by the “unprofessional appearance” of the web page. If so then you have misunderstood its purpose. The public is inundated by junk science, A large portion come from the Internet. There are almost no Internet resources where a lay reader can find a counterweight to the extensive claims of pseudoscientists. Dr. Colquhoun’s blog is a unique resource. The format may put off a scientific reader, but it is exactly the format required to get the message to the web surfer with a 10 second attention span. In my view the Improbable Science web page was among the most important public services made available by the University College London.

I don’t know the facts of your decision. Perhaps there are policies, procedures, and regulations that Dr. Colquhoun has violated in creating the Improbable Science web page. However, I do know that any request to remove the page that follows a complaint from an individual offended by the page is entirely inappropriate. Even were your request otherwise reasonable, the mere appearance of academic censorship should have been absolutely unacceptable to you. (Think of it like conflict of interest – there is a need to avoid not only true conflict of interest, but the mere appearance of
conflict of interest. Requesting removal of these pages may not represent censorship, but it certainly appears to be censorship, which is anathema to the academic credo.)

It is thus with shock, sadness, and disappointment that I have learned of this decision by the University College London. I hope that you will reconsider. The present course makes it appear that UCL has caved in to pseudoscientists and is engaged in academic censorship of possibly the most important public service offered by the UCL.


Steve Shafer

Steven L. Shafer, MD
Editor-in-Chief, Anesthesia & Analgesia
Professor, Department of Anesthesia, Stanford University
Adjunct Professor, Biopharmaceutical Sciences, UCSF
Stanford University Medical Center
Stanford, CA 94305

No doubt it is an exaggeration to say “the Improbable Science web page was among the most important public services made available by the University College London”. But thanks anyway.

After an unrepentant response, Professor Shafer replied thus.

Dear Provost Grant:I appreciate your taking the time to respond. I’m sure that as provost you live on the receiving end of a firehose of correspondence, as do I as a professor and a journal Editor-in-Chief. I’m sorry to have added to the e-mail overload. I appreciate your finding time to respond.

It would be my hope that Stanford University would shoulder the responsibility of dealing with whatever harassment would come my way by virtue of my scientific and academic pursuits. Yes, when legal action is threatened, and staff are consumed with processing paperwork, I’m sure my Dean, Provost, and President would prefer to ransfer everything to me. However, the effect would be chilling. Universities are supposed to provide a haven to insulate scientists from harassment. I’ve looked at Dr.
Colquhoun’s publications via PubMed. He is a top drawer investigator. He is also a very public advocate for critical thinking.

You note that Dr. Colquhoun “accepts that he needs to be in a position where he shoulders directly the burden of responding to Dr Lakin.” I applaud his fortitude, but note that are only 24 hours in a day. If the administrative resources of University College London are inadequate to respond to Dr. Lakin, how is Dr. Colquhoun, on his own, without the resources of UCL, expected to survive the harassment, legal hallenges, and other pressures to silence him?

As a counter example, the University of California at San Francisco stood solidly behind Stanton Glantz when the cigarette industry tried to destroy him for his efforts to expose their activities. Had he agreed to “shoulder directly the burden”, we would never have known of the extensive research conducted by the cigarette industry over two decades that identified the health risks, and guided their extensive disinformation campaign. I would hope that Stanford University would following the UCSF example, and devote the necessary resources to defend my academic freedom, rather than the UCL
example, and ask me to “shoulder the burden.”

Again, I appreciate your responding to my e-mail. I hope that my perspective is a least thought provoking on the complex mutual responsibilities between a prestigious University and an equally prominent faculty member with outspoken views.

Thank you for your consideration,


Steve Shafer

The Goldacre effect

Saturday 9 June 2007. The wires (and my hit counter) are melting after Ben Goldacre’s comments on the move of this web site from UCL’s servers. That’s understandable: his excellent badscience.net site gets 12,000 hits a day and 95,000 unique visitors per month.

Like all the other comments, his badscience column in today’s Guardian, was not solicited by me, but it’s wonderful to know that somebody cares. His badscience.net version (“The Mighty David Colquhoun” !) was even more over-the-top. I can’t say I’m feeling very “mighty” at the moment.

Goldacre’s piece starts “I’ve always said you’d get a lot more kids interested in science if you told them it involves fighting – which of course it does.” A correspondent today enlarged on the theme “you have got me thinking and yes my kids would be far more interested in science if a playstation game was created whereby Prof. Colquhoun was zapping disgruntled alternative therapists”. The mind boggles. Making money out of selling mindless violence (in the news again today) must be even worse than making money out of selling useless pills. A university should be one of the few places left where one cannot be accused of knowing the price of everything, and the value of nothing.
Contrary to what some people seem to think, I don’t enjoy rows. They keep me awake at night. But some things are just too important to duck out of them.

Read the provost’s reply.

Goldacre has posted the complete text of the provost’s reply to one of the many people who have written to him. You should read the other side of the story too (click here and search for “letter from provost”). Grant has a real problem. He shouldn’t have to spend time fending off herbalists. Yet if they aren’t fended off, more attacks will occur. Who’d be a provost? That is all sorted out now.