Contraceptive use by women across different sexual orientation groups
Contraceptive use by women across different sexual orientation groups
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DOI：
10.1016/j.contraception.2019.05.002
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发表时间：
2019-09-01
期刊：
影响因子：
2.9
通讯作者：
Austin, S. Bryn
中科院分区：
文献类型：
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作者：
Charlton, Brittany M.;Janiak, Elizabeth;Austin, S. Bryn
目的：检查跨性取向群体使用的避孕方法。 研究设计：我们收集了两个纵向队列——护士健康研究 (NHS) 2（成立于 1989 年，参与者出生于 1947-1964 年）和 NHS3（成立于 2010 年，出生于 1965-1995 年）的 118,462 名女性参与者的数据。我们使用对数二项式模型来估计跨性取向群体和群体曾经使用过的避孕方法，并根据年龄和种族进行调整。结果：女同性恋者是所有性取向群体中使用任何避孕方法的可能性最小的。 NHS2 中的女同性恋使用长效可逆避孕药（LARC；调整后的风险比 [aRR]；95% 置信区间 [CI]：0.10 [0.04，0.26]）的可能性比异性恋低 90%，其他避孕方法和 NHS3 队列的结果相似。与没有同性伴侣的完全异性恋参与者的参考组相比，那些被认为是有同性伴侣的完全异性恋者（主要是异性恋或双性恋者）通常更有可能使用任何避孕方法。在性少数群体中，LARC 的使用尤其引人注目，而且，除女同性恋者外，他们更有可能使用 LARC；例如，NHS3 双性恋者使用 LARC 的可能性是双性恋者的两倍多（aRR [95% CI]：2.01 [1.67, 2.42]）。结论：虽然某些性少数群体（例如双性恋者）比异性恋者更有可能使用 LARC 等避孕方法，但女同性恋者使用任何方法的可能性较小。 (C) 2019 Elsevier Inc. 保留所有权利。
Objectives: To examine contraceptive methods used across sexual orientation groups.Study Design: We collected data from 118,462 female participants in two longitudinal cohorts-the Nurses' Health Study (NHS) 2 (founded in 1989, participants born 1947-1964) and NHS3 (founded in 2010, born 1965-1995). We used log-binomial models to estimate contraceptive methods ever used across sexual orientation groups and cohorts, adjusting for age and race.Results: Lesbians were the least likely of all sexual orientation groups to use any contraceptive method. Lesbians in NHS2 were 90% less likely than heterosexuals to use long-acting reversible contraceptives (LARCs; adjusted risk ratio [aRR]; 95% confidence interval [CI]: 0.10 [0.04, 0.26]) and results were similar for other contraceptive methods and in the NHS3 cohort. Compared to the reference group of completely heterosexual participants with no same-sex partners, those who identified as completely heterosexual with same-sex partners, mostly heterosexual, or bisexual were generally more likely to use any method of contraception. Use of LARCs was especially striking across sexual minority groups, and, with the exception of lesbians, they were more likely to use LARCs; as one illustration, NHS3 bisexuals were more than twice as likely to use LARCs (aRR [95% CI]: 2.01 [1.67, 2.42]).Conclusions: While certain sexual minority subgroups (e.g., bisexuals) were more likely than heterosexuals to use contraceptive methods such as LARCs, lesbians were less likely to use any method. (C) 2019 Elsevier Inc. All rights reserved.