Mortality among oral contraceptive users: 20 year follow up of women in a cohort study.

@article{Vessey1989MortalityAO,
  title={Mortality among oral contraceptive users: 20 year follow up of women in a cohort study.},
  author={Martin P. Vessey and L. Villard-Mackintosh and Klim Mcpherson and David Yeates},
  journal={BMJ},
  year={1989},
  volume={299 6714},
  pages={1487-91}
}
OBJECTIVE To see whether the use of oral contraceptives influences mortality. DESIGN Non-randomised cohort study of 17,032 women followed up on an annual basis for an average of nearly 16 years. SETTING 17 Family planning clinics in England and Scotland. SUBJECTS Women recruited during 1968-74. At the time of recruitment each woman was aged 25-39, married, a white British subject, willing to participate, and either a current user of oral contraceptives or a current user of a diaphragm or… CONTINUE READING