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Endgames Statistical question

Number needed to treat

BMJ 2009; 339 doi: (Published 05 August 2009) Cite this as: BMJ 2009;339:b3130
  1. Siva K Talluri, clinical assistant professor
  1. 1Mclaren Regional Medical Center, Flint, MI 48532, USA
  1. talluri1{at}

    In a trial comparing a drug with a placebo for the prevention of myocardial infarction, the incidence of myocardial infarction was 5% in the group receiving drug A (treatment group) and 10% in the group receiving placebo (control group); P=0.01.

    How many patients need to be treated with drug A to prevent …

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