孕产妇死亡率为衡量围产保健工作质量的重要指标之一。世界各国之间、发达国家与发展中国家之间差别很大。近年来国内外对孕产妇死亡的生物学因素进行了大量研究,而对有关社会因素的调查研究较少。为 Maternal mortality is one of the important indicators for measuring the quality of perinatal health care. Differences between developed countries and developing countries vary greatly among countries in the world. In recent years, the biological factors of maternal mortality both at home and abroad have been extensively studied, but there are few studies on the social factors. for