Intended for healthcare professionals

Endgames Statistical question

Relative risk

BMJ 2008; 337 doi: (Published 06 November 2008) Cite this as: BMJ 2008;337:a2295
  1. John Fletcher, clinical epidemiologist
  1. 1BMJ, London WC1H 9JR
  1. jfletcher{at}

    A trial of antibiotics for treating community acquired pneumonia showed that the relative risk of death was 0.5 with a P value of 0.01. …

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