Nettleman Mary D, Chung Hwan, Brewer Jennifer, Ayoola Adejoke, Reed Philip L
Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI 48823, USA.
Contraception. 2007 May;75(5):361-6. doi: 10.1016/j.contraception.2007.01.011. Epub 2007 Mar 12.
This study was conducted to identify reasons why women had unprotected intercourse that led to an unintended pregnancy.
As part of the Pregnancy Risk Assessment Monitoring System (PRAMS) survey, women with a recent unintended viable pregnancy were asked after the birth why they had not used birth control.
Of 7856 respondents, 33% felt they could not get pregnant at the time of conception, 30% did not really mind if they got pregnant, 22% stated their partner did not want to use contraception, 16% cited side effects, 10% felt they or their partner were sterile, 10% cited access problems and 18% selected "other." Latent class analysis showed seven patterns of response, each identifying strongly with a single reason.
Almost half of women with viable unintended pregnancies ending in a birth felt they could not/would not get pregnant at the time of conception. Most women identified with a single reason for having unprotected intercourse.
本研究旨在确定女性发生导致意外怀孕的无保护性行为的原因。
作为妊娠风险评估监测系统（PRAMS）调查的一部分，近期有意外活产妊娠的女性在产后被问及为何未采取避孕措施。
在7856名受访者中，33%认为她们在受孕时不可能怀孕，30%对是否怀孕并不在意，22%表示其伴侣不想使用避孕措施，16%提到有副作用，10%认为自己或伴侣不育，10%提到获取避孕措施有问题，18%选择“其他”。潜在类别分析显示有七种反应模式，每种模式都强烈对应一个单一原因。
几乎一半以分娩告终的意外活产妊娠女性认为她们在受孕时不可能/不会怀孕。大多数女性都认同发生无保护性行为的单一原因。
