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Letters Health benefits of moderate alcohol consumption

How good is the science?

BMJ 2012; 344 doi: (Published 27 March 2012) Cite this as: BMJ 2012;344:e2276
  1. T Stockwell, director1,
  2. A Greer, graduate student 2,
  3. K Fillmore, senior scientist 3,
  4. T Chikritzhs, professor4,
  5. C Zeisser, postdoctoral fellow1
  1. 1Centre for Addictions Research of British Columbia, University of Victoria, Victoria, BC, Canada, V8Y 2E4
  2. 2Dalla Lana School of Public Health, University of Toronto, ON, Canada
  3. 3Institute for Scientific Analysis, San Francisco, CA, USA
  4. 4National Drug Research Institute, Curtin University, Perth, WA 6845, Australia
  1. timstock{at}

Ronksley and colleagues asserted that the association between moderate alcohol consumption and reduced mortality risk was “beyond question.”1 We reviewed all 67 studies that generated the 84 articles in their meta-analysis. All but two had at least one of six serious methodological problems, and these two had mixed findings (figure); see for bibliography).

  • (1) No control for …

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