Ovarian cancer and oral contraceptives: collaborative reanalysis of data from 45 epidemiological studies including 23,257 women with ovarian cancer and 87,303 controls

V. Beral, R. Doll, C. Hermon, R. Peto, G. Reeves, L.J. Schouten, P.A. van den Brandt

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Abstract

Background oral contraceptives were introduced almost 50 years ago, and over 100 million women currently use them. Oral contraceptives can reduce the risk of ovarian cancer, but the eventual public-health effects of this reduction will depend on how long the protection lasts after use ceases. We aimed to assess these effects.
Original languageEnglish
Pages (from-to)303-314
JournalLancet
Volume371
Issue number9609
DOIs
Publication statusPublished - 1 Jan 2008

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