My new book has just been published. Allow me to try and whet your appetite by showing you the book’s introduction:
“There is no alternative medicine. There is only scientifically proven, evidence-based medicine supported by solid data or unproven medicine, for which scientific evidence is lacking.” These words of Fontanarosa and Lundberg were published 22 years ago. Today, they are as relevant as ever, particularly to the type of healthcare I often call ‘so-called alternative medicine’ (SCAM), and they certainly are relevant to chiropractic.
Invented more than 120 years ago by the magnetic healer DD Palmer, chiropractic has had a colourful history. It has now grown into one of the most popular of all SCAMs. Its general acceptance might give the impression that chiropractic, the art of adjusting by hand all subluxations of the three hundred articulations of the human skeletal frame, is solidly based on evidence. It is therefore easy to forget that a plethora of fundamental questions about chiropractic remain unanswered.
I wrote this book because I feel that the amount of misinformation on chiropractic is scandalous and demands a critical evaluation of the evidence. The book deals with many questions that consumers often ask:
- How well-established is chiropractic?
- What treatments do chiropractors use?
- What conditions do they treat?
- What claims do they make?
- Are their assumptions reasonable?
- Are chiropractic spinal manipulations effective?
- Are these manipulations safe?
- Do chiropractors behave professionally and ethically?
Am I up to this task, and can you trust my assessments? These are justified questions; let me try to answer them by giving you a brief summary of my professional background.
I grew up in Germany where SCAM is hugely popular. I studied medicine and, as a young doctor, was enthusiastic about SCAM. After several years in basic research, I returned to clinical medicine, became professor of rehabilitation medicine first in Hanover, Germany, and then in Vienna, Austria. In 1993, I was appointed as Chair in Complementary Medicine at the University of Exeter. In this capacity, I built up a multidisciplinary team of scientists conducting research into all sorts of SCAM with one focus on chiropractic. I retired in 2012 and am now an emeritus professor. I have published many peer-reviewed articles on the subject, and I have no conflicts of interest. If my long career has taught me anything, it is this: in the best interest of consumers and patients, we must insist on sound evidence; not opinion, not wishful thinking; evidence.
In critically assessing the issues related to chiropractic, I am guided by the most reliable and up-to-date scientific evidence. The conclusions I reach often suggest that chiropractic is not what it is often cracked up to be. Hundreds of books have been published that disagree. If you are in doubt who to trust, the promoter or the critic of chiropractic, I suggest you ask yourself a simple question: who is more likely to provide impartial information, the chiropractor who makes a living by his trade, or the academic who has researched the subject for the last 30 years?
This book offers an easy to understand, concise and dependable evaluation of chiropractic. It enables you to make up your own mind. I want you to take therapeutic decisions that are reasonable and based on solid evidence. My book should empower you to do just that.
Yes, chiropractic spinal manipulation shows promise to alleviate symptoms of infant colic! At least, this is the result of an overview of systematic reviews of so-called alternative medicines (SCAMs) for infant colic. Here I focus merely on the part that deals with chiropractic spinal manipulation. The authors of the overview come to this result based mainly on the statement:
Spinal manipulation was assessed in six reviews [22, 23, 25,26,27,28]. Two multiple CAM reviews assessed manipulation but did not pool the results [22, 25]. Both found three trials to be effective [68, 69, 72, 73, or] with the exception of one .
And here are the references they cite (all the primary studies are on chiropractic manipulation):
22.Perry R, Hunt K, Ernst E. Nutritional supplements and other complementary medicines for infantile colic: a systematic review. Pediatrics. 2011;127:720–33.
23.Bruyas-Bertholo V, Lachaux A, Dubois J-P, Fourneret P, Letrilliart L. Quels traitements pour les coliques du nourrisson. Presse Med. 2012;41:e404–10.
24.Harb T, Matsuyama M, David M, Hill RJ. Infant colic—what works: a systematic review of interventions for breast-fed infants. J Pediatr Gastroenterol Nutr. 2016;62(5):668–86.
25.Gutiérrez-Castrellón P, Indrio F, Bolio-Galvis A, et al. Efficacy of Lactobacillus reuteri DSM 17938 for infantile colic. Systematic review with network meta-analysis. Medicine. 2017;96(51):e9375.
26.Dobson D, Lucassen PLBJ, Miller JJ, Vlieger AM, Prescott P, Lewith G. Manipulative therapies for infantile colic. Cochrane Database of Systematic Reviews. 2012;(Issue 12. Art. No.: CD004796)
27.Gleberzon BJ, Arts J, Mei A, McManus EL. The use of spinal manipulative therapy for pediatric health conditions: a systematic review of the literature. J Can Chiropr Assoc. 2012;56(2):128–41.
28.Carnes D, Plunkett A, Ellwood J, et al. Manual therapy for unsettled, distressed and excessively crying infants: a systematic review and meta-analyses. BMJ Open. 2018;8:e019040.
68.Wiberg J, Nordsteen J, Nilsson N. The short-term effect of spinal manipulation in the treatment of infantile colic: a randomized controlled trial with a blinded observer. J Manip Physiol Ther. 1999;22(8):517–22.
69.Mercer C. A study to determine the efficacy of chiropractic spinal adjustments as a treatment protocol in the Management of Infantile Colic [thesis]. Durban: Technikon Natal,Durban University; 1999.
70.Mercer C, Nook B. The efficacy of chiropractic spinal adjustments as a treatment protocol in the management of infantile colic. In: Presented at: 5th Biennial Congress of the World Federation of Chiropractic. Auckland; 1999. p. 170-1.
71.Olafsdottir E, Forshei S, Fluge G, Markestad T. Randomized controlled trial of infantile colic treated with chiropractic spinal manipulation. Arch Dis Child. 2001;84(2):138–41.
And here is the relevant part of the overview’s conclusion:
Spinal manipulation shows promise to alleviate symptoms of colic, although concerns remain as positive effects were only demonstrated when crying was measured by unblinded parent assessors.
I have several concerns about this new overview:
- My comments on the Canes paper are here and do not need repeating.
- My comments on the Dobson paper (according to the overview authors, it is the best of all the reviews) are also available and need no repeating.
- Reference 22 is a systematic review I did together with the lead author of the new overview while she was one of my co-workers at Exeter. It is not focussed on spinal manipulation, but on all SCAMs. Here is the relevant passage from our conclusions regarding spinal manipulation: The evidence for … manual therapies does not indicate an effect.
How the review authors could come to the verdict that spinal manipulation shows promise is thus more than a little mysterious. If we consider the following, it gets positively bewildering. Even the most rudimentary of searches on Medline will deliver a 2009 systematic review by myself entitled ‘Chiropractic spinal manipulation for infant colic: a systematic review of randomised clinical trials‘. It was the first systematic review on the subject but was not included in the new overview.
I do not know.
Here are my conclusions from this paper:
Collectively these RCTs fail to demonstrate that chiropractic spinal manipulation is an effective therapy for infant colic. The largest and best reported study failed to show effectiveness (11). Numerous weaknesses of the primary data would prevent ﬁrm conclusions, even if the results of all RCTs had been unanimously positive.
And here is what my review stated about the three primary RCTs assessed in all the other review authors:
The trial by Wiberg et al. (10) did not attempt to blind the infants’ parents who acted as the evaluators of the therapeutic success. The paper provides little details about the recruitment process, but it is fair to assume that patients were asked to participate in a trial of spinal manipulation. Thus one might expect a degree of disappointment in parents of the control group whose children did not receive this treatment. This, in turn, could have impacted on the parents’ subjective judgements. In any case, there is no control for placebo effects which can be very different for a physical intervention compared with an oral placebo – dimethicone was administered as a placebo and the authors stress that it is ‘no better than placebo treatment’.
The RCT by Olafsdottir et al. (11) is by far the best-reported study of all the included RCTs. In many ways, it is a replication of Wiberg’s investigation (10) but on a larger scale with twice the sample size. It is the only study where a serious attempt was made to control for the placebo effects of spinal manipulations. For these reasons, its results seem more reliable than those of the other RCTs.
The RCT by Browning and Miller (12) is a comparison of two manual techniques both of which are assumed by the authors to be effective. Thus it is essentially a non-inferiority trial. Yet, it is woefully underpowered for such a design. Even if it had the necessary power, its results would be difﬁcult to interpret because none of the two interventions have been proven to be effective. Thus, one would still be uncertain whether both interventions are similarly ineffective or effective. As it stands, the result simply seems to demonstrate that symptoms of infant colic lessen over time possibly as a result of non-speciﬁc therapeutic effects, the natural history of the disease, concomitant treatments, social desirability or a combination of these factors.
So, what should we conclude from all this? I am not sure – except for one thing, of course: I would not call the evidence for chiropractic spinal manipulation promising.
RE: Review of chiropractic spinal care for children under 12 years
The Australian Medical Association (AMA Victoria) appreciates the opportunity to respond to the Safer Care Victoria (SCV) consultation on chiropractic manipulation of children under 12 years.
The AMA is pleased that SCV has decided to review this practice which is manifestly unsafe and unwarranted.
Chiropractic spinal manipulation on children has received recent media attention and prompted community concerns about its safety, appropriateness and the professional duties of those undertaking it. Most notably, in February this year medical experts and the Victorian Government condemned the controversial practice of infant spine manipulation after footage emerged of a Melbourne chiropractor treating a two-week old baby on the chiropractor’s own site.
Treatment of infants and very young children
We are aware that chiropractors are treating children for problems such as “infantile colic” by manipulative therapies. There is no credible evidence for this, it is a dangerous practice in itself and it potentially impedes the proper assessment and management of an infant. Additionally, it preys on often tired parents by the promise of a frequently false unequivocal diagnosis and false “quick fix”. This is plainly unconscionable and dangerous behaviour.
In preparing our response, we engaged with doctors across many specialities who have offered valuable insights into the matters being considered as part of this review. It is our very firm view that the risk of undertaking spinal manipulation on small infants is of no benefit and is potentially extremely dangerous. Newborn babies are extremely fragile and AMA Victoria warns that damage done to a baby or infant may not be immediately obvious to parents, and may not manifest until many years later. This is supported by a study conducted by the American Academy of Pediatrics  which found serious adverse events may be associated with paediatric spinal manipulation.1
Another critical issue is that it is very unlikely that parents are providing informed consent to such procedures. For parents to provide informed consent, they would need to be fully advised of the risks including, for example:
• the diagnosis of “infant colic” is a catch all for a range of symptoms with different aetiologies;
• the potential drastic short and long term consequences of spinal manipulation on their baby;
• there are no scientific safety and efficacy studies undertaken; and
• there is no credible scientific evidence for manipulation.
Chiropractors should also be directing parents to general practitioners for the proper holistic assessment and care of the child and family.
Additionally, infants and very young children cannot provide assent for a procedure for which there is no evidence they require and which may leave them with long term consequences. Consideration of whether such potentially dangerous therapies, which are not underpinned by a strong evidence-base, should be supported by private health insurance rebates is also warranted.
Treatment of children under 12 years of age
Although there is limited evidence that some musculoskeletal treatments are effective in adults, there is no credible scientific evidence that manipulation, mobilisation or any applied spinal therapy in children under 12 years of age is warranted or safe.
AMA Victoria does not support clinical interventions unless there is scientific evidence that such treatments are useful in treating the illness. AMA Victoria also supports patients being fully informed on the illness and the risks and benefits to any treatment. When the risks are to be borne by a non-assenting child, the requirement of evidence and consent is especially important.
AMA Victoria strongly advocates that chiropractic (and other health professionals) spinal care for children under 12 years of age is dangerous, unwarranted and must cease immediately.
If you would like to discuss any aspect of our response, please contact Ms Nada Martinovic, Senior Policy Advisor on (03) 9280 8773 or [email protected]
Associate Professor Julian Rait OAM AMA VICTORIA PRESIDENT
1 Sunita, V., et al., Adverse Events Associated with Pediatric Spinal Manipulation: A Systemic Review, Pediatrics, 2007: 119; 275-283.
I am truly delighted that the AMA Victoria agrees with many points I have tried to make previously (see for instance here, here and here). The statement is unsurpassed in its directness and strength. My congratulations to Prof Raith – very well done!
Let’s hope that professional bodies of other regions and counties will swiftly follow suit with equal clarity.
In the latest issue of ‘Simile’ (the Faculty of Homeopathy‘s newsletter), the following short article with the above title has been published. I took the liberty of copying it for you:
Members of the Faculty of Homeopathy practising in the UK have the opportunity to take part in a trial of a new homeopathic remedy for treating infant colic. An American manufacturer of homeopathic remedies has made a registration application for the new remedy to the MHRA (Medicines and Healthcare products Regulatory Agency) under the UK “National Rules” scheme. As part of its application the manufacturer is seeking at least two homeopathic doctors who would be willing to trial the product for about a year, then write a short report about using the remedy and its clinical results. If you would like to take part in the trial, further details can be obtained from …
END OF QUOTE
A homeopathic remedy for infant colic?
The British Homeopathic Association and many similar ‘professional’ organisations recommend homeopathy for infant colic: Infantile colic is a common problem in babies, especially up to around sixteen weeks of age. It is characterised by incessant crying, often inconsolable, usually in the evenings and often through the night. Having excluded underlying pathology, the standard advice given by GPs and health visitors is winding technique, Infacol or Gripe Water. These measures are often ineffective but fortunately there are a number of homeopathic medicines that may be effective. In my experience Colocynth is the most successful; alternatives are Carbo Veg, Chamomilla and Nux vomica.
SO, IT MUST BE GOOD!
But hold on, I cannot find a single clinical trial to suggest that homeopathy is effective for infant colic.
Ahhhhhhhhhhhhhhhhhhh, I see, that’s why they now want to conduct a trial!
They want to do the right thing and do some science to see whether their claims are supported by evidence.
How very laudable!
After all, the members of the Faculty of Homeopathy are doctors; they have certain ethical standards!
After all, the Faculty of Homeopathy aims to provide a high level of service to members and members of the public at all times.
Judging from the short text about the ‘homeopathy for infant colic trial’, it will involve a few (at least two) homeopaths prescribing the homeopathic remedy to patients and then writing a report. These reports will unanimously state that, after the remedy had been administered, the symptoms improved considerably. (I know this because they always do improve – with or without treatment.)
These reports will then be put together – perhaps we should call this a meta-analysis? – and the overall finding will be nice, positive and helpful for the American company.
And now, we all understand what homeopaths, more precisely the Faculty of Homeopathy, consider to be evidence.
Needle acupuncture in small children is controversial, not least because the evidence that it works is negative or weak, and because small children are unable to consent to the treatment. Yet it is recommended by some acupuncturists for infant colic. This, of course, begs the questions:
- Does the best evidence tell us that acupuncture is effective for infant colic?
- Are acupuncturists who recommend acupuncture for this condition responsible and ethical?
This systematic review and a blinding-test validation based on individual patient data from randomised controlled trials was aimed to assess its efficacy for treating infantile colic. Primary end-points were crying time at mid-treatment, at the end of treatment and at a 1-month follow-up. A 30-min mean difference (MD) in crying time between acupuncture and control was predefined as a clinically important difference. Pearson’s chi-squared test and the James and Bang indices were used to test the success of blinding of the outcome assessors [parents].
The investigators included three randomised controlled trials with data from 307 participants. Only one of the included trials obtained a successful blinding of the outcome assessors in both the acupuncture and control groups. The MD in crying time between acupuncture intervention and no acupuncture control was -24.9 min at mid-treatment, -11.4 min at the end of treatment and -11.8 min at the 4-week follow-up. The heterogeneity was negligible in all analyses. The statistically significant result at mid-treatment was lost when excluding the apparently unblinded study in a sensitivity analysis: MD -13.8 min. The registration of crying during treatment suggested more crying during acupuncture.
The authors concluded that percutaneous needle acupuncture treatments should not be recommended for infantile colic on a general basis.
The authors also provide this further comment: “Our blinding test validated IPD meta-analysis of minimal acupuncture treatments of infantile colic did not show clinically relevant effects in pain reduction as estimated by differences in crying time between needle acupuncture intervention and no acupuncture control. Analyses indicated that acupuncture treatment induced crying in many of the children. Caution should therefore be exercised in recommending potentially painful treatments with uncertain efficacy in infants. The studies are few, the analysis is made on small samples of individuals, and conclusions should be considered in this context. With this limitation in mind, our findings do not support the idea that percutaneous needle acupuncture should be recommended for treatment of infantile colic on a general basis.”
So, returning to the two questions that I listed above – what are the answers?
I think they must be:
How often have we heard that chiropractic has moved on and has given up the concept of subluxation/malalignment? For sure there is no evidence for such nonsense, and it would be high time to give it up! But, as has been argued here and elsewhere, if chiros give it up, what is there left? What then would differentiate them from physios ? The answer is not a lot.
In any case, chiros have by no means given up subluxation. One can argue this point ad nauseam; yet, most chiros remain in denial.
For this post, I have chosen a different approach to make my point. I simply went on twitter and had a look what messages chiros tweet. The impression I got is that the majority of chiros are totally immersed in subluxation. To provide some proof, I have copied a few images – if chiros do not listen to words, perhaps they understand pictures, I thought.
So, here we go – enjoy![please click to see them full size]
‘Alternative truth’ is a term that I used first in 2013 . Since then I had to employ it with increasing frequency. Disturbingly, since then similar terms, such as ‘alternative facts’, ‘alternative science’ etc., have become ‘en vogue’. In an NEJM-editorial on the subject, Alta Caro from the University of Wisconsin Law School, Madison, US recently concluded: Reasonable people may disagree about how to interpret data, but they do not ignore scientific method by giving credence to flawed, fraudulent, or misrepresented studies … Whether in the debates regarding climate change, evolutionary theory, or human reproduction, alternative facts are just fiction, and alternative science is just bad policy.
I am tempted to add AND ALTERNATIVE TRUTHS ARE JUST LIES!!!
On this blog, we are confronted with so many lies that it would be only normal, if we gradually got used to them.
- I think we must resist this temptation.
- I think we should expose those who tell untruths again and again.
- I think it is our moral and ethical duty.
- I think the truth is far too precious to allow it to be eroded by anyone.
Because I feel strongly about this issue, I would like to use this post to give two of my former colleagues the opportunity to correct the untruths they have published about me and my actions.
The 1st is Prof Harald Walach;
as I pointed out in a previous post, he stated the following untruth (his remarks were in German, and this is my translation):
“My friend and colleague George Lewith from Southampton gave a keynote lecture on his review of chiropractic interventions for infant colic. This was prompted by the claim, made by Singh and Ernst a few years ago, that chiropractic was dangerous, that no data existed showing its effectiveness, and that it had dangerous side-effects, particularly for children. The chiropractors had sued the science journalist Singh for libel and won the case. George Lewith had provided the expert report for the court and has now extended his analysis on children.
To put it briefly: the intervention is even very effective; the effect-size is about one standard deviation. The children cry less long and more rarely. And the search of the literature for dangerous side-effects resulted in no – literally: not one – case of side-effects, not to mention dangerous ones. The fuzz had started back then because an unqualified person had walked over the back of a thin woman and had thus broken her neck. The press had subsequently hyped the whole thing to a “deadly side-effect of a chiropractic intervention”.
The 2nd is Dr Peter Fisher;
as I pointed out in another post, he too published an untruth about me:
In this article which he published as Dr. Peter Fisher, Homeopath to Her Majesty, the Queen, he wrote: “There is a serious threat to the future of the Royal London Homoeopathic Hospital (RLHH), and we need your help…Lurking behind all this is an orchestrated campaign, including the ’13 doctors letter’, the front page lead in The Times of 23 May 2006, Ernst’s leak of the Smallwood report (also front page lead in The Times, August 2005), and the deeply flawed, but much publicised Lancet meta-analysis of Shang et al…”
And why bring this up again?
For the reasons mentioned above.
And for giving Walach and Fisher the opportunity to correct their errors. If they don’t, their untruths will be henceforth called lies.
Much has been written on this blog about progress in the area of chiropractic practice and research. But where is the evidence for progress? I did a little search and one of the first sites I stumbled across was this one which is full to bursting with bogus claims. This cannot be what chiropractors call ‘progress’, I thought.
Determined to find real progress, I continued searching and found THE FOUNDATION FOR CHIROPRACTIC PROGRESS. Great, I thought, an organisation and a website entirely devoted to the very subject I was looking for. Consequently, I studied the information provided here in some detail. What follows are excerpts from the site:
Chiropractic care is a health option that has proven beneficial for a multitude of health conditions, along with in the practice of achieving optimal wellness. It is essential for those unaware of chiropractic care to be adequately informed, so they too can experience the benefits that over 60,000 practicing doctors of chiropractic in the U.S. provide to their patients daily. Established in 2003, the not-for-profit Foundation for Chiropractic Progress (F4CP) aims to educate the public about the many benefits associated with chiropractic care.On behalf of the F4CP, I invite you to tour this site and learn more about this effective form of treatment.
Chairman | Foundation for Chiropractic Progress
THIS WAS A STRANGE INTRODUCTION, I THOUGHT; BUT UNDETERRED I READ ON:
Parents of Colicky Infants Turn to Chiropractic Care
For those parents who never imagined their ailing babies and toddlers could be helped by chiropractic care, it may be time for some rethinking.New mom Jean, a 31-year-old speech therapist from New Jersey, became an advocate after enlisting the help of her own chiropractor to treat her colicky infant girl, Emma. After having had what she says was “no luck” with the usual ways of alleviating colic symptoms – including giving Emma children’s probiotics daily – one appointment with board-certified in chiropractic pediatrics Dr. Lora Tanis produced an immediate difference.
Concussions Among Athletes
A concussion is a type of traumatic brain injury caused by a bump, blow or jolt to the head that can change the way the brain functions. Symptoms include dizziness, instability and confusion.
Using methods that rely on brain-based, non-invasive, drugfree approaches — like chiropractic
care and physical rehab — can help re-establish balance and maximal brain and nervous system functionality.
News of Health – Improving Military Health Care
Retired U.S. Army Brigadier General Becky Halstead—the first woman in U.S. history to command in combat at the strategic level—is speaking out on the value of chiropractic care for the nation’s military men and women.
With the epidemic now estimated to be costing the nation $147 billion annually, it’s a question that’s very much on the minds of health experts. And many, including lifestyle guru Shea Vaughn, are citing chiropractic care as a crucial part of overall wellness programs.
FEELING A LITTLE DISAPPOINTED, I STOPPED READING AND THOUGHT
PROGRESS INDEED !!!
The question whether infant colic can be effectively treated with manipulative therapies might seem rather trivial – after all, this is a benign condition which the infant quickly grows out of. However, the issue becomes a little more tricky, if we consider that it was one of the 6 paediatric illnesses which were at the centre of the famous libel case of the BCA against my friend and co-author Simon Singh. At the time, Simon had claimed that there was ‘not a jot of evidence’ for claiming that chiropractic was an effective treatment of infant colic, and my systematic review of the evidence strongly supported his statement. The BCA eventually lost their libel case and with it the reputation of chiropractic. Now a new article on this intriguing topic has become available; do we have to reverse our judgements?
The aim of this new systematic review was to evaluate the efficacy or effectiveness of manipulative therapies for infantile colic. Six RCTs of chiropractic, osteopathy or cranial osteopathy alone or in conjunction with other interventions were included with a total of 325 infants. Of the 6 included studies, 5 were “suggestive of a beneficial effect” and one found no evidence of benefit. Combining all the RCTs suggested that manipulative therapies had a significant effect. The average crying time was reduced by an average of 72 minutes per day. This effect was sustained for studies with a low risk of selection bias and attrition bias. When analysing only those studies with a low risk of performance bias (i.e. parental blinding) the improvement in daily crying hours was no longer statistically significant.
The quality of the studies was variable. There was a generally low risk of selection bias but a high risk of performance bias. Only one of the studies recorded adverse events and none were encountered.
From these data, the authors drew the following conclusion: Parents of infants receiving manipulative therapies reported fewer hours crying per day than parents whose infants did not and this difference was statistically significant. Most studies had a high risk of performance bias due to the fact that the assessors (parents) were not blind to who had received the intervention. When combining only those trials with a low risk of such performance bias the results did not reach statistical significance.
Does that mean that chiropractic does work for infant colic? No, it does not!
The first thing to point out is that the new systematic review included not just RCTs of chiropractic but also osteopathy and cranio-sacral therapy.
The second important issue is that the effects disappear, once performance bias is being accounted for which clearly shows that the result is false positive.
The third relevant fact is that the majority of the RCTs were of poor quality. The methodologically best studies were negative.
And the fourth thing to note is that only one study mentioned adverse effects, which means that the other 5 trials were in breach of one of rather elementary research ethics.
What makes all of this even more fascinating is the fact that the senior author of the new publication, George Lewith, is the very expert who advised the BCA in their libel case against Simon Singh. He seems so fond of his work that he even decided to re-publish it using even more misleading language than before. It is, of course, far from me to suggest that his review was an attempt to white-wash the issue of chiropractic ‘bogus’ claims. However, based on the available evidence, I would have formulated conclusions which are more than just a little different from his; something like this perhaps:
The current best evidence suggests that the small effects that emerge when we pool the data from mostly unreliable studies are due to bias and therefore not real. This systematic review therefore fails to show that manipulative therapies are effective. It furthermore points to a serious breach of research ethics by the majority of researchers in this field.
Many reader of this blog will remember the libel case of the British Chiropractic Association (BCA) against Simon Singh. Simon had disclosed in a Guardian comment that the BCA was happily promoting bogus chiropractic treatments for 6 paediatric conditions, including infant colic. The BCA not only lost the case but the affair almost destroyed this strange organisation and resulted in an enormous reputational damage of chiropractors worldwide. In an article entitled AFTER THE STORM, the then-president of the BCA later described the defeat in his own words: “in 2009, events in the UK took a turn which was to consume the British Chiropractic Association (BCA) for two years and force the wider profession to confront key issues that for decades had kept it distanced from its medical counterparts and attracting ridicule from its critics…the BCA began one of the darkest periods in its history; one that was ultimately to cost it financially, reputationally and politically…The GCC itself was in an unprecedented situation. Faced with a 1500% rise in complaints, Investigating Committees were assembled to determine whether there was a case to answer…The events of the past two years have exposed a blind adherence to outdated principles amongst a small but significant minority of the profession. Mindful of the adage that it’s the squeaky wheel that gets the grease, the vocalism of this group has ensured that chiropractic is characterised by its critics as unscientific, unsafe and slightly wacky. Claims that the vertebral subluxation complex is the cause of illness and disease have persisted despite the three UK educational establishments advising the GCC that no evidence of acceptable quality exists to support such claims.”
Only a few years AFTER THE STORM, this story seems to have changed beyond recognition. Harald Walach, who is known to readers of this blog because I reported that he was elected ‘pseudo-scientist of the year’ in 2012, recently published a comment on the proceedings of the European Congress of Integrated Medicine where we find the following intriguing version of the libel case:
Mein Freund und Kollege George Lewith aus Southampton hatte einen Hauptvortrag über seine Überblicksarbeit über chiropraktische Interventionen für kleinkindliche Koliken vorgelegt. Sie ist ausgelöst worden durch die Behauptung, die Singh und Ernst vor einigen Jahren erhoben hatten, dass Chiropraktik gefährlich ist, dass es keine Daten dafür gäbe, dass sie wirksam sei und dass sie gefährliche Nebenwirkungen habe, speziell wenn sie bei Kindern angewendet würde. Die Chiropraktiker hatten den Wissenschaftsjournalisten Singh damals wegen Verleumdung verklagt und recht erhalten. George Lewith hatte dem Gericht die Expertise geliefert und nun seine Analyse auf Kinder ausgedehnt.
Kurz gefasst: Die Intervention wirkt sogar ziemlich stark, etwa eine Standardabweichung war der Effekt groß. Die Kinder schreien kürzer und weniger. Und die Durchforstung der Literatur nach gefährlichen Nebenwirkungen hatte keinen, wortwörtlich: nicht einen, Fall zu Tage gefördert, der von Nebenwirkungen, geschweige denn gefährlichen, berichtet hätte. Die Aufregung war seinerzeit dadurch entstanden, dass eine unqualifizierte Person einer zart gebauten Frau über den Rücken gelaufen ist und ihr dabei das Genick gebrochen hat. Die Presse hatte das ganze dann zu „tödlicher Nebenwirkung chiropraktischer Intervention“ aufgebauscht.
Oh, I almost forgot, you don’t read German? Here is my translation of this revealing text:
“My friend and colleague Geoorge Lewith from Southampton gave a keynote lecture on his review of chiropractic interventions for infant colic. This was prompted by the claim, made by Singh and Ernst a few years ago, that chiropractic was dangerous, that no data existed showing its effectiveness, and that it had dangerous side-effects, particularly for children. The chiropractors had sued the science journalist Singh for libel and won the case. George Lewith had provided the expert report for the court and has now extended his analysis on children.
To put it briefly: the intervention is even very effective; the effect-size is about one standard deviation. The children cry less long and more rarely. And the search of the literature for dangerous side-effects resulted in no – literally: not one – case of side-effects, not to mention dangerous ones. The fuzz had started back then because an unqualified person had walked over the back of a thin woman and had thus broken her neck. The press had subsequently hyped the whole thing to a “deadly side-effect of a chiropractic intervention”. (I am sorry for the clumsy language but the original is even worse.)
Now, isn’t that remarkable? Not only has the truth about the libel case been turned upside down, but also the evidence on chiropractic as a treatment for infant colic seems mysteriously improved; other reviews which might just be a bit more independent and objective come to the following conclusions:
The literature concerning this topic is surprisingly scarce, of poor quality and lack of convincing conclusions. With the present day data on this topic, it is impossible to say whether this kind of treatment has a significant effect.
And what should we make of all this? I don’t know about you, but I conclude that, for some apologists of alternative medicine, the truth is a rather flexible commodity.