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应用Cox伴随时间变化变量回归模型来准确的评价产后哺乳与避孕的关系。从天津市河西区随机抽取9个街,344名产后12～18个月的哺乳期妇女进行问卷调查。调查结果表明产后启用避孕措施的时间与哺乳类型无关,但已恢复月经的妇女比仍闭经的妇女更可能选用避孕措施。年轻妇女产后性生活恢复和启用避孕措施的时间较早。建议妇女产后恢复性生活之后,无论完全哺乳还是闭经,都应尽早选择一种适宜的避孕方法。
The relationship between postpartum lactation and contraception was accurately evaluated by Cox regression model with time variation. A random sample of 9 streets and 344 postpartum lactating women aged 12 to 18 months from Hexi District, Tianjin were surveyed. The results of the survey showed that the timing of postpartum contraception was not related to the type of breastfeeding, but women who had resumed menstruation were more likely to choose contraception than women who were still amenorrhea. Early recovery of young women’s postpartum sexual life and the introduction of contraceptive measures took place earlier. After women are advised to resume their postpartum sexual life, whether breast-feeding or amenorrhea, should choose an appropriate contraceptive method as soon as possible.