[shamney]

"In summary, the study is grossly underpowered to convincingly prove a plausible protection, and they have committed the cardinal sin of saying that non-significance is the same as 'no effect' in a study lacking sufficient events, in this case, deaths in non-drinkers. Maybe epidemiological studies should include power calculations, which make sure there is a reasonable chance of detecting a plausible effect, and which became standard in clinical trials after too-small studies were being used to claim that drugs did not work."

http://understandinguncertainty.org/misleading-conclusions-a...