Endgames Statistical question

Risk

BMJ 2008; 337 doi: https://doi.org/10.1136/bmj.a2293 (Published 30 October 2008) Cite this as: BMJ 2008;337:a2293
  1. John Fletcher, clinical epidemiologist
  1. 1BMJ, London WC1H 9JR
  1. jfletcher{at}bmj.com

    A group of investigators decided to test the hypothesis that use of postmenopausal hormone replacement therapy increases the risk of breast cancer. They identified 500 women with newly diagnosed breast cancer, and 500 women of the same age, from the same neighbourhoods as the first …

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