Homeopathy data dredging

Homeopathy does not work and can not work. The evidence is clear; and there is plenty of that evidence. It is no better than a placebo. Any ‘clinical’ effect of it is due to that placebo effect. I won’t get into it all the details here, but if you want more check this out: How Does Homeopathy work?.

That does not stop those who try to defraud the consumer with homeopathy from grasping at straws and coming up with implausible and improbable mechanisms as to how it might work (it doesn’t) and grasping at some badly done flawed studies published in a low or no impact factor journals, and ignore all the well done properly blinded and controlled studies published in high impact factor journals. And when that argument does not work, they come up with some sob story or special pleading that this is not the appropriate way to clinically test homeopathy (it is).

One way you can get a ‘not quite correct’ result in a clinical trial, is that you just collect a lot of different outcome measures and by chance, one or two of them might be statistically significant, but it is highly likely a result by chance and not due to a real effect. To get around this problem it is now standard practice to register clinical trials in advance and state what your primary endpoint measure is. Almost all major medical journals have for many years now required this a priori registration of clinical trials before they will accept a paper for publication. One of the aims is to prevent the sort of data dredging that could go on until a set of results is found the confirms the preconceived biases of the researchers. The analysis of the data should primarily stick to what was a priori specified and registered.

What drew my attention to this today, was this study that looked at the publication of homeopathy studies registered on ClinicalTrials.gov. After 2 years only just under 50% were published. There could be many reasons for that, but what was of most interest to me in the results was that of those that were published, a quarter altered their primary endpoint from what was in the a priori registration! That should set up big alarm bells. That means they went looking in the data for a better result than what they would have got with the a priori specified endpoint! That is really dodgy and should not pass the ‘sniff’ test, yet still got published.

This sort of nonsense goes on a lot with clinical trials on alternative medicine. I already blogged about how randomized controlled trials on reflexology more often than not end up with the exact same number in each group which is really hard to to if you randomize properly, which means they were not randomizing properly!

I will finish with this cartoon. Those familiar with the nonsensical proposed mechanism of homeopathy working via molecular memory, will appreciate why homeopathy is still full of shit.

Please sign up for my newsletter when a new content is posted:




Advertisement:

SaleBestseller No. 1
Watkins' Manual of Foot and Ankle Medicine and Surgery
  • Watkins, Leon (Author)
  • English (Publication Language)
SaleBestseller No. 2
2024 Coding Companion for Podiatry (Spiral)
  • Optum (Author)
  • English (Publication Language)
SaleBestseller No. 3
SaleBestseller No. 4
Foot and Ankle Radiology
  • Hardcover Book
  • English (Publication Language)
Bestseller No. 5
Podiatry Student Handbook: (Second Edition)
  • Shi, Eric (Author)
  • English (Publication Language)
Bestseller No. 8
QYUVK Retractable Podiatry Badge Reel with Alligator Clip, Funny Black Glitter Foot Badge Holder Gift for Doctors Nurses Podiatrist Podiatry Squad Podiatric or Foot Doctor, DPM Graduation Gift
  • 【PRODUCT SIZE】: The width of The retractable badge reel is 1.8 inch, length is 4.1 inch, retracts to extend 24 inch (60cm) nylon cord, weight about 0.60 oz.
  • 【HIGH QUALITY】: The Glitter badge holder is made of high quality Acrylic, ABS and metal, and the rope is mainly made of quality nylon material, which is sturdy and strong, safe and reliable, not easy to break, fade or tear, you can use for a long time with confidence.
Bestseller No. 9
Podiatry Medical Assistant Podiatrist Funny Podiatry Nurse T-Shirt
  • A funny podiatry graphic for medical assistants, nurses, foot doctors, specialists and physicians working in podiatric medicine in hospitals and medical clinics.
  • A podiatry medical assistant design for men and women.

I get commissions for purchases made through links on this website. As an Amazon Associate I earn from qualifying purchases