by Mr_Grue » Jun 9th, '12, 09:52
I think the problem we have with chiropractic is that it is founded on something that doesn't exist, and has no evidence for most of its claims. And as ever, we're not talking about a lack of research - in trials it delivers a nill result, as does acupressure and acupuncture beyond certain limited cases. We know that as sham acupuncture treatments become more convincing, then they approach the results of genuine acupuncture. We know that acupuncture works to the same level irrespective of where you stick the needles. I guess it comes down to whether you are for or against placebo-based treatment, and/or whether you're happy to pay out your taxes or insurance money to pay for such treatments for others. I think that's why we in the UK have a bee in our bonnet about chiropractic - it more than any other complementary medicine has a veneer of respectability. We look to how chiropractic is viewed in America and worry that it will end up being taken as seriously over here. I suspect that in part we have NHS and NICE to thank for it not being taken so seriously - if it were insurance companies deciding, rather than agencies of state, then chiro would be more commonplace, and its claims taken more seriously. And sadly, there are too many practitioners out there who go beyond young Browning's advocacy of complementary treatment, and instead believe that conventional medicine somehow blocks their herbs/needles/smell/sugar pills. People do die as a result.
I think there's a temptation to view this as a fight between conventional medicine and alternative medicine, but to me its always been about evidence-based medicine verses no- or negative-evidence-based medicine. I work in advertising clearance. In the UK broadcast advertising is an evidence-based world. I've turned down plenty of ads that have made claims for alternative therapies - I've also turned down ads for treatments being offered by GMC-staffed private clinics.
Any treatment ought to live or die by its evidence base, and that goes for surgery too. There's a famous experiment that was run regarding a widely used knee operation. Patients were randomised, and the surgeons would, essentially, be handed an envelope at the point that the patient had been prepped for surgery and anaesthetised. Inside the envelope would be instructions telling the surgeon either to carry out the procedure as normal, or to cut the patient open and then immediately sew them up again, without doing anything more. When the results were in, they clearly showed that the procedure had no effect beyond the placebo. I think there's a more recent example of this with a fairly delicate heart operation, but it escapes me at the moment.
EBM in practice has its problems - publishing bias, no interest in publication of repeat experiments even when they overturn previous findings, etc - but the goal surely is to fix EBM, rather than throw it out all together. Ben Goldacre promotes the idea of a registry of research; a commitment to publish; and a journal of null results. These measures would go a fair way to prevent problems in clinical research.
Simon Scott
If the spectator doesn't engage in the effect,
then the only thing left is the method.
tiny.cc/Grue