Health News Review: by Gary Schwitzer – February 24, 2012.
A spin around the Web today will give you many stories about citrus fruits and women’s stroke risk.
- Citrus Fruits May Lower Women’s Stroke Risk – WebMD
- But in the body of the story there’s not a word about the limitations of such an observational study. Only this quote: “Our study supports the conclusion that flavanones are associated with a modest reduction in stroke risk,” says researcher Kathryn M. Rexrode, MD, MPH, of Boston’s Harvard Medical School and Brigham and Women’s Hospital. Associated with does not = “lower women’s stroke risk.” Association ≠ causation.
It got worse.