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The largest “randomized” acupuncture study ever done: Why did they even bother?

Posted in Respectful Insolence by Skepdude on August 28, 2008

ResearchBlogging.orgBelieve it or not, there was one area of so-called “alternative” medicine that I used to be a lot less skeptical about than I am now. Homeopathy, I always realized to be a load of pseudoscientific magical thinking. Ditto reiki, therapeutic touch, and other forms of “energy healing.” It didn’t take an extensive review of the literature to figure that out, although I did ultimately end up doing fairly extensive literature reviews anyway. Then, the more I looked into the hodge-podge of “healing” modalities whose basis is not science but rather prescientific and often mystical thought, the less impressed I was.

Even so, there was always one modality that I gave a bit of a pass to. There was one modality that, or so I thought, might actually have something to it. There was one modality that seemed to have a bit of suggestive evidence that it might do something more than a placebo. I’m referring to acupuncture. No, I never bought all the mystical mumbo-jumbo about how sticking needles into “meridians” somehow alters or “unblocks” the flow of a mysterious “life force” known as qi that is undetectable by science. I did wonder if perhaps it worked as a counterirritant or by releasing endorphins.

Then I actually started paying attention to the scientific literature regarding acupuncture, including literature like this and this. The more I read, the more I realized something. I realized that there was far less to acupuncture than I had previously thought, and, even with my previous openness to it, I hadn’t thought all that much about it anyway. What I had thought about it was that it might have a very mild beneficial effect. What I know now is that acupuncture is almost certainly no more than an elaborate placebo. What I know now is that virtually every study of acupuncture claiming to show a positive effect has serious methodological flaws and that the better-designed the study the less likely there is to be an effect. What I now know is that any study without a true “sham” acupuncture arm is worthless, and that well-designed studies show “sham” acupuncture to be no different than “real” acupuncture; i.e., no different than placebo.



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