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早产与多种因素相关,是孕妇的流行病学特点、营养状况、生育史、感染、妊娠并发症、合并症和社会经济、心理、遗传、环境等多种因素综合作用的结果;早产的诸多影响因素相互影响,共同作用,在早产的发生、发展中起着至关重要的作用。明确早产的高危因素有以下3个目的:(1)对于早产的高危妇女
Premature labor is related to many factors and is the result of the combined effect of pregnant women ’epidemiological characteristics, nutritional status, fertility history, infection, pregnancy complications, complications and socio-economic, psychological, genetic, environmental and other factors; premature labor Influencing factors affect each other and work together, play a crucial role in the occurrence and development of preterm birth. Identify the risk factors for preterm birth has the following three purposes: (1) for high-risk premature women