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本研究对北京地区1990年间272余万育龄妇女(15～49岁)进行宫外孕发生率监测,共收集确诊宫外孕1420例。在育龄妇女总人群中宫外孕发生率为0.52/1000育龄妇女年。使用节育方法人群中宫外孕发生率为0.54/1000育龄妇女;已婚未使用节育方法人群则为1.80/1000育龄妇女,为使用节育方法者三倍。又应用相对优势比(RO_(MH))与归因危险度(AR)定量综合评价宫外孕与节育方法使用的关系,结果显示有效使用各种节育方法均不增加宫外孕发生危险。各种节育方法因其避孕效果及在人群中使用比例不同,其降低宫外孕发生的程度亦不同。TCu IUD有效使用,明显降低宫外孕发生危险。
In this study, the incidence of ectopic pregnancy was monitored in more than 272 million women of reproductive age (15-49 years) in Beijing during 1990. A total of 1420 confirmed ectopic pregnancies were collected. The incidence of ectopic pregnancy in the total population of childbearing women was 0.52 / 1000 women of childbearing age. The incidence of ectopic pregnancy in population using birth control method was 0.54 / 1000 women of childbearing age; married / unused birth control method was 1.80 / 1000 women of childbearing age, three times as many as using birth control method. The relationship between ectopic pregnancy and birth control was quantitatively evaluated by the relative odds ratio (RO_ (MH)) and the attribution risk (AR). The results showed that the effective use of various methods of birth control did not increase the risk of ectopic pregnancy. Various methods of birth control due to their contraceptive effect and the use of different proportions in the population, reduce the extent of ectopic pregnancy are also different. TCu IUD effective use, significantly reduce the risk of ectopic pregnancy.