足月产小于胎龄儿的孕早期影响因素

The influencing factors in early pregnancy of term small for gestational age infant

目的探究影响足月产小于胎龄儿(small for gestational age,SGA)发生的因素,为预防其发生提供科学依据。方法采用问卷调查及医院信息系统收集数据,使用logistic回归分析模型分析足月产SGA的影响因素。结果足月产SGA的发生率为6.6%,非初次怀孕、孕期补充二十二碳六烯酸(docosahexaenoic acid,DHA)是足月产SGA发生的保护因素,孕前低BMI、妊娠期合并脐带缠绕是足月产SGA发生的危险因素(均有P<0.05)。结论孕妇在备孕和妊娠期应保持合理体重、孕期补充DHA、预防脐带缠绕等妊娠期并发症,以降低SGA发生风险。

Objective To explore the influencing factors of term small for gestational age(SGA)infant,and to provide a scientific basis for preventing the SGA.Methods Questionnaire survey and Hospital Information System(HIS)were used to collect data,and logistic regression analysis model was used to analyze the influencing factors of SGA.Results The incidence of SGA was 6.6%.Non-first pregnancy and docosahexaenoic acid(DHA)supplementation during pregnancy were the protective factors of SGA,low BMI before pregnancy and umbilical cord entanglement during pregnancy were the risk factors of SGA(all P<0.05).Conclusion Pregnant women should maintain a reasonable weight before and during pregnancy,supplement DHA during pregnancy,and prevent umbilical cord entanglement and other pregnancy complications to reduce the risk of SGA.