… oral contraceptives. Thus, the overall balance of cancer risk among past users of oral
contraceptives … from 2 other cohort studies: the Oxford-Family Planning Association study 27 and …

… This observational cohort OC study was mostly retrospective. 22,920 ever … A
methodological review of the Royal College of General Practitioners’ oral contraception study. …

… of hormonal contraceptive use. The reduced ovarian cancer risk among previous hormonal
contraceptive users … College of General Practitioners’ Oral Contraception Study. Am J Obstet …

… ever and never oral contraceptive users in the study cohort. … were similar to the incidence in
UK women in general (Fig. 1A… the cumulative cancer incidence during oral contraceptive use …

… data on women who enrolled in the initial cohorts, like that of the Royal College of General …
change in risk between them. Estrogen dose or type of progestogen do not seem to be strong …

… Study, a younger birth cohort, found substantial risk reductions associated with current and
recent use of contemporary combined hormonal contraceptives [19]; however, this study was …

… breast cancer in a nationwide prospective cohort study … epidemiologic analysis of breast-cancer
risk among women of … compared with the general incidence rate among Finnish women …

… of contemporary hormonal contraception used by a national cohort of … cancer risk associated
with the hormonal contraceptives … risk among ever users of any hormonal contraception; RR …

… in breast cancer risk among current and recent users. The use of HCs is concentrated
among … The Royal College of General Practitioners (RCGP) cohort study began in 1968 with …

… Our findings of a higher breast cancer risk among current and recent OC users are consistent
with results from previous studies,5, 6, 7, 8 , 31 , 32 including the finding of a stronger …