To update findings on venous thromboembolism risks among users of oral contraceptives based on recent data.
Analysis of data from the Oxford-Family Planning Association contraceptive study
Summarization of findings reported since 1978
Prospective cohort study design
New data highlights the incidence of venous thromboembolism among contraceptive users
Trends in thrombotic events over time are observed
Implications for risk assessment in contraceptive prescriptions are discussed
Abstract
Data on venous thromboembolism occurring among participants in the Oxford-Family Planning Association contraceptive study were last reported in 1978. We summarise our latest findings here.