Jensen Allan, Sharif Heidi, Frederiksen Kirsten, Kjaer Susanne Krüger
Danish Cancer Society, Institute of Cancer Epidemiology, Strandboulevarden 49, DK-2100, Copenhagen, Denmark.
BMJ. 2009 Feb 5;338:b249. doi: 10.1136/bmj.b249.
To examine the effects of fertility drugs on overall risk of ovarian cancer using data from a large cohort of infertile women.
Population based cohort study.
Danish hospitals and private fertility clinics.
54,362 women with infertility problems referred to all Danish fertility clinics during 1963-98. The median age at first evaluation of infertility was 30 years (range 16-55 years), and the median age at the end of follow-up was 47 (range 18-81) years. Included in the analysis were 156 women with invasive epithelial ovarian cancer (cases) and 1241 subcohort members identified in the cohort during follow-up in 2006.
Effect of four groups of fertility drugs (gonadotrophins, clomifene citrate, human chorionic gonadotrophin, and gonadotrophin releasing hormone) on overall risk of ovarian cancer after adjustment for potential confounding factors.
Analyses within cohort showed no overall increased risk of ovarian cancer after any use of gonadotrophins (rate ratio 0.83, 95% confidence interval 0.50 to 1.37), clomifene (1.14, 0.79 to 1.64), human chorionic gonadotrophin (0.89, 0.62 to 1.29), or gonadotrophin releasing hormone (0.80, 0.42 to 1.51). Furthermore, no associations were found between all four groups of fertility drugs and number of cycles of use, length of follow-up, or parity.
No convincing association was found between use of fertility drugs and risk of ovarian cancer.
利用一大群不孕女性的数据,研究生育药物对卵巢癌总体风险的影响。
基于人群的队列研究。
丹麦医院及私立生育诊所。
1963年至1998年间转诊至丹麦所有生育诊所的54362名有不孕问题的女性。首次评估不孕时的中位年龄为30岁(范围16 - 55岁),随访结束时的中位年龄为47岁(范围18 - 81岁)。分析纳入了156名侵袭性上皮性卵巢癌女性(病例)以及2006年随访期间在队列中确定的1241名亚队列成员。
在调整潜在混杂因素后,四组生育药物(促性腺激素、枸橼酸氯米芬、人绒毛膜促性腺激素和促性腺激素释放激素)对卵巢癌总体风险的影响。
队列内分析显示,使用任何促性腺激素(率比0.83,95%置信区间0.50至1.37)、氯米芬(1.14,0.79至1.64)、人绒毛膜促性腺激素(0.89,0.62至1.29)或促性腺激素释放激素(0.80,0.42至1.51)后,卵巢癌总体风险均未增加。此外,在所有四组生育药物与使用周期数、随访时间长度或产次之间未发现关联。
未发现生育药物使用与卵巢癌风险之间存在令人信服的关联。