OBJECTIVE: To examine the relationship of ovulation-inducing drugs and ovarian cancer. DESIGN: Retrospective cohort study, with additional follow-up since initial report. SETTING: Five large reproductive endocrinology practices. PATIENT(S): In a retrospective cohort of 9,825 women evaluated for infertility at five clinical sites in the United States between 1965 and 1988 with follow-up through 2010, we examined the relationship of ovulation-inducing drugs and ovarian cancer (n = 85). INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Hazard rate ratios (RR) and 95% confidence intervals (CI) for ovarian cancer. RESULT(S): Among women evaluated for infertility, there was no association of ovarian cancer risk with ever use of clomiphene citrate (CC) (adjusted RR 1.34, 95% CI 0.86-2.07) or gonadotropins (RR 1.00, 95% CI 0.48-2.08) and no evidence that any of several more detailed subgroups of usage were related to an increased risk with one exception: women who used CC and remained nulligravid did demonstrate much higher risks than those who successfully conceived compared with nonusers (respectively, RR 3.63, 95% CI 1.36-9.72 vs. RR 0.88, 95% CI 0.47-1.63). CONCLUSION(S): Our overall results were reassuring and consistent with other studies. A reason for an association between CC use and ovarian cancer among persistently nulligravid women remains to be determined. Given the large and increasing number of women treated with ovulation-inducing drugs, the increased risk of ovarian cancer among the subset of women who remained nulligravid should be further monitored. Published by Elsevier Inc.
OBJECTIVE: To examine the relationship of ovulation-inducing drugs and ovarian cancer. DESIGN: Retrospective cohort study, with additional follow-up since initial report. SETTING: Five large reproductive endocrinology practices. PATIENT(S): In a retrospective cohort of 9,825 women evaluated for infertility at five clinical sites in the United States between 1965 and 1988 with follow-up through 2010, we examined the relationship of ovulation-inducing drugs and ovarian cancer (n = 85). INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Hazard rate ratios (RR) and 95% confidence intervals (CI) for ovarian cancer. RESULT(S): Among women evaluated for infertility, there was no association of ovarian cancer risk with ever use of clomiphene citrate (CC) (adjusted RR 1.34, 95% CI 0.86-2.07) or gonadotropins (RR 1.00, 95% CI 0.48-2.08) and no evidence that any of several more detailed subgroups of usage were related to an increased risk with one exception: women who used CC and remained nulligravid did demonstrate much higher risks than those who successfully conceived compared with nonusers (respectively, RR 3.63, 95% CI 1.36-9.72 vs. RR 0.88, 95% CI 0.47-1.63). CONCLUSION(S): Our overall results were reassuring and consistent with other studies. A reason for an association between CC use and ovarian cancer among persistently nulligravid women remains to be determined. Given the large and increasing number of women treated with ovulation-inducing drugs, the increased risk of ovarian cancer among the subset of women who remained nulligravid should be further monitored. Published by Elsevier Inc.
Authors: Roberta B Ness; Daniel W Cramer; Marc T Goodman; Susanne Krûger Kjaer; Kathy Mallin; Berit Jul Mosgaard; David M Purdie; Harvey A Risch; Ronald Vergona; Anna H Wu Journal: Am J Epidemiol Date: 2002-02-01 Impact factor: 4.897
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Authors: M M Reigstad; I K Larsen; T Å Myklebust; T E Robsahm; N B Oldereid; A K Omland; S Vangen; L A Brinton; R Storeng Journal: Hum Reprod Date: 2015-06-24 Impact factor: 6.918