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利用世界卫生组织课题“健康教育对哺乳和避孕行为的影响—上海市产后妇女哺乳和避孕行为队列研究”的调查资料,分析了不同因素对哺乳期闭经的影响。多元COX回归分析结果发现市区(黄浦区和普陀区)对象中闭经时间短,月经初潮年龄小的妇女闭经时间也短。按时喂养、每昼夜喂奶次数少、哺乳时间短的对象闭经时间短。哺乳期闭经时间的长短因受多种因素的影响(尤其是哺乳的情况),在作为一种避孕方法使用时应注意其避孕效率。
Using the survey data of the World Health Organization project “The Impact of Health Education on Breastfeeding and Contraceptives - A Study of Shanghai Collaborating on Breastfeeding and Contraceptive Behavior among Postpartum Women”, the effects of different factors on lactating amenorrhea were analyzed. Multivariate COX regression analysis found that urban areas (Huangpu District and Putuo District) amenorrhea time is short, the age of menarche women with a small amenorrhea time is also short. Feeding on time, feeding less every day and night, a short time breast-feeding amenorrhea time is short. The duration of amenorrhea during lactation is influenced by a number of factors, especially when breastfeeding, and attention should be given to its contraceptive effectiveness when used as a contraceptive method.