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采用以医院为基础的描述性流行病学方法，于１９９６年８～９月，在北京市５所大医院的产前检查门诊调查了１０１８名参加产前检查的孕妇人工流产（人流）史情况。结果表明：４６．２％（４７０名）孕妇至少有过１次人流史（包括手术流产与药物流产史）。其中，单纯有手术流产史的为３１．９％（３２５名），单纯有药物流产（药流）史的为９．４％（９６名），既有手术又有药物流产史的为４．８％（４９名）。在４７０名有人流史的孕妇中，有７３．８％（３４７名）做过１次，有２０．０％（９４名）做过２次，６．２％（２９名）做过３次及以上。在３７４名做过手术流产者中，有７８．６％（２９４名）做过１次，有１７．９％（６７名）做过２次，有３．５％（１３名）做过３次及以上。在１４５名做过药流者中，８９．７％（１３０名）做过１次，有１０．３％做过２次。在所有的人流者（４７０名）中，就她们人流的类型来说，有７４．９％（３５２名）是做的手术流产，有１８．７％（８８名）是单纯用口服的药物流产，有２．８％（１３名）是用阴道放药加上口服药方法的药流，有０．９％（４名）是药流后又进行清宫手术的。在所有的有人流史的孕妇中，４４．５％是在市级医院做的，２６．８％是在区级?
Using a hospital-based descriptive epidemiological approach, from October to September 1996, prenatal visits at five major hospitals in Beijing investigated the history of induced abortion among 1018 prenatal women . The results showed that: 46.2% (470) of pregnant women had at least one history of abortion (including surgical abortion and medical abortion history). Among them, the only history of surgical abortion was 31.9% (325), the simple history of medical abortion (medical abortion) was 9.4% (96), both the history of surgical abortion and medical 4.8 % (49). Among 470 pregnant women with abortion history, 73.8% (347) did it once, 20.0% (94), and 6.2% (29) three times And above. Of the 374 surgical abortions, 78.6% (294) did it once, 17.9% (67) did it twice and 3.5% (13) did it 3 Times and above. Among the 145 drug abusers, 89.7% (130) did it once and 10.3% did it twice. Of all the abortionists (470), 74.9% (352) were surgical abortions and 18.7% (88%) were abortions with oral medication alone, depending on the type of abortion , 2.8% (13) were vaginal drug delivery plus oral drug flow, 0.9% (4) is the medical flow and then undergoing radical surgery. Of all pregnant women with abortion history, 44.5% were in municipal hospitals and 26.8% were district-level?