Finn Sean M, Douglas-Hall Ayana, Jones Rachel K
Guttmacher Institute in New York.
Contracept X. 2020 Jun 16;2:100028. doi: 10.1016/j.conx.2020.100028. eCollection 2020.
To improve understanding of contraceptive use over 1 year among women in the United States.
We used the 2013-2015 National Survey of Family Growth to examine monthly contraceptive use patterns over a 12-month period. We focused on use of contraception during months in which non-sterilized women were sexually active and not pregnant; our outcomes were contraceptive use in every month, some months, and no months. We used simple and multivariate logistic regression to examine socio-demographic and method use characteristics associated with contraceptive use patterns.
Some 72% of non-pregnant, non-surgically sterile women used contraception in every sexually active month. After controlling for other demographic and individual characteristics, adolescents had higher odds (aOR = 2.45) of using contraception in each sexually active month compared to women aged 25-29. Other groups more likely to use contraception monthly included those with some college (aOR = 1.58) compared to less than high school and non-cohabiting unmarried women (aOR = 1.49) compared to married women. Those with gaps in insurance coverage during the past year (aOR = 0.70), women who were not sexually active all 12 months (aOR = 0.42), and those with more than two male sexual partners (aOR = 0.49), were less likely to use contraception every sexually active month. Nearly half (46%) of contraceptive users in our sample used more than one type of contraceptive method over the 12-month period.
The majority of women use contraception every month they are sexually active, although there is variation between socio-demographic groups. However, over a one-year period, many women used dynamic contraceptive strategies.
Health care providers should recognize that contraceptive use patterns are dynamic and change over a relatively short time period for many women.
提高对美国女性一年内避孕措施使用情况的了解。
我们利用2013 - 2015年全国家庭成长调查来研究12个月期间的每月避孕使用模式。我们关注未绝育女性性活跃且未怀孕月份的避孕措施使用情况；我们的结果是每个月、某些月以及没有月使用避孕措施。我们使用简单和多变量逻辑回归来研究与避孕使用模式相关的社会人口统计学和方法使用特征。
约72%未怀孕、非手术绝育的女性在每个性活跃月份都使用避孕措施。在控制了其他人口统计学和个人特征后，与25 - 29岁的女性相比，青少年在每个性活跃月份使用避孕措施的几率更高（调整后比值比[aOR]=2.45）。其他更可能每月使用避孕措施的群体包括上过一些大学的人（与高中以下学历相比，aOR = 1.58）以及非同居未婚女性（与已婚女性相比，aOR = 1.49）。过去一年有保险覆盖间断的人（aOR = 0.70）、12个月并非都性活跃的女性（aOR = 0.42）以及有两个以上男性性伴侣的人（aOR = 0.49），在每个性活跃月份使用避孕措施的可能性较小。在我们的样本中，近一半（46%）的避孕使用者在12个月期间使用了不止一种避孕方法。
大多数女性在性活跃的每个月都使用避孕措施，尽管社会人口统计学群体之间存在差异。然而，在一年的时间里，许多女性采用了动态避孕策略。
医疗保健提供者应认识到避孕使用模式是动态的，并且在相对较短的时间内许多女性的情况会发生变化。
