Letters RCGP’s oral contraception study

Study shows greater cancer risk

BMJ 2008; 336 doi: https://doi.org/10.1136/bmj.39450.636875.3A (Published 10 January 2008) Cite this as: BMJ 2008;336:59

This article has a correction. Please see:

  1. Joel Brind, professor
  1. 1Department of Natural Sciences, Baruch College, City University of New York, New York, NY 10010, USA
  1. joelbrind{at}yahoo.com

    Hannaford et al reported a significant 12% reduction in the risk of any cancer (adjusted relative risk 0.88, 95% confidence interval 0.83 to 0.94), which was widely cited in the popular media as reassuring evidence of the safety of oral contraceptives.1 But although it was prudent to exclude participants under age 38 at time of loss to follow-up, since use of oral …

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