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Number Needed to Treat (or Harm)

07/06/16 | by david2 [mail] | Categories: Bread
http://www.nytimes.com/2015/02/03/upshot/how-to-measure-a-medical-treatments-potential-for-harm.html This shows exactly how effective certain treatments are and how they are evaluated on that basis. Treat 4000 with an aspirin a day for two years. Two will have avoided a heart attack, and one will have a bad bleeding event, and nothing will happen to 3997.
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