Laukaran V H, Winikoff B
Stud Fam Plann. 1985 Nov-Dec;16(6 Pt 1):293-301.
Data from a 1981-1982 survey of infant feeding practices in four developing countries are used to analyze the relationship of amenorrhea, lactation, and time since childbirth with contraceptive use. The relationship was first explored using contingency table analysis. Logistic regression analysis was then performed to control for the effects of background variables. Models were tested separately for oral contraceptive users and users of other methods. Analysis showed a strong, independent, and consistent negative relationship between amenorrhea and contraceptive use. Women who were less than four months postpartum were also less likely to use contraceptives. The strength of the association with amenorrhea outweighed all other variables, including demographic correlates of contraceptive use. A negative relationship between breastfeeding and contraceptive use was found only for users of oral contraceptives. It is possible that women in the immediate postpartum period, especially those who are lactating and amenorrheic, are not as highly motivated to use contraception as had been supposed.
1981 - 1982年对四个发展中国家婴儿喂养方式的调查数据被用于分析闭经、哺乳及产后时间与避孕措施使用之间的关系。首先使用列联表分析来探究这种关系。然后进行逻辑回归分析以控制背景变量的影响。针对口服避孕药使用者和其他避孕方法使用者分别对模型进行了测试。分析表明闭经与避孕措施使用之间存在强烈、独立且一致的负相关关系。产后不到四个月的女性使用避孕药的可能性也较小。与闭经的关联强度超过了所有其他变量，包括与避孕措施使用相关的人口统计学因素。仅在口服避孕药使用者中发现母乳喂养与避孕措施使用之间存在负相关关系。有可能产后即刻的女性，尤其是那些正在哺乳且闭经的女性，对使用避孕措施的积极性不如预期的高。
