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本文对北京市孕产妇死亡率分布的基本特征(年龄、孕产次、居住地区、死亡原因)及保健措施(初检孕周、检查次数、分娩方式)进行了初步分析。孕产妇年龄别死亡率的相对危险和超额死亡在城区、近郊、远县各不相同,远县大于近郊,近郊大于城区;同时,孕产妇死亡率随年龄、孕产次的增加而增高;(?)30岁、孕产次(?)3次的孕产妇要比20～24岁及25～29岁年龄组面临更大的危险,其死亡的相对危险,超额死亡高出几十倍甚至上百倍。初检孕周(?)12周产前检查次数(?)7次,无疑是一种保护因素,它将大大减少孕产妇死亡。
In this paper, the basic characteristics of maternal mortality distribution in Beijing (age, place of maternity, area of residence, cause of death) and health measures (initial pregnancy test, number of examinations and mode of delivery) were preliminarily analyzed. The relative risk of age-specific maternal mortality and excess mortality are different in urban areas, suburbs and far-away counties. The far-off counties are larger than the suburbs and the suburbs are larger than the urban areas; at the same time, the maternal mortality rate increases with the increase of age and pregnancy; ?) 30-year-old, pregnant women (?) 3 times pregnant women than the 20 to 24 years old and 25 to 29 years old group face greater risk, the relative risk of death, excess mortality several times or even higher hundred times. The number of prenatal examinations (?) 12 weeks prior to the initial screening (?) 7 times is undoubtedly a protective factor and will significantly reduce maternal mortality.