Stories like today’s about naproxen causing “a 50 percent greater risk of heart attacks and stroke than placebo” can be meaningless if they don’t provide the ABSOLUTE risk. The 50% figure is the relative risk — naproxen’s rate relative to placebo. But we’re not told the ABSOLUTE rate: how many people actually had heart attacks [...]
See my review article in this week’s British Medical Journal. http://bmj.bmjjournals.com/cgi/content/full/329/7478/1352