目的:了解西宁地区低出生体重儿的发生率及其相关因素。方法:对我院产科2004年1月—2006年12月3年间出生的低出生体重儿进行其发生率及相关病因统计分析。结果:近3年共分娩活产新生儿3976例,低体重儿293例,发生率7.4%,3年依次分别为5.9%、7.4%、8.9%。其中早产儿低体重发生率71.1%,足月儿低体重发生率28.3%。低体重儿产妇来源州县农牧区渐多,所占比例分别为8.8%、9.1%、21.1%。母孕期异常情况最多见为妊娠高血压综合征,发生率高达50.5%,其次为胎膜早破,再者为脐带和羊水因素。结论:低出生体重相关因素仍以妊高征、胎膜早破为主,故应预防早产,积极防治和控制妊高征,尤以州县农牧区为主。 Objective: To understand the incidence of low birth weight infants in Xining and its related factors. Methods: The incidence and related etiology of low birth weight infants born in our hospital from January 2004 to December 2006 were analyzed. Results: In the past 3 years, 3976 live births and 293 low birth weight infants were born. The incidence rate was 7.4%. The three years were 5.9%, 7.4% and 8.9% respectively. Among them, the rate of low birth weight in preterm infants was 71.1% and that of term infants was 28.3%. The number of low-birth-weight babies originates in counties and counties is gradually increasing, accounting for 8.8%, 9.1% and 21.1% respectively. Abnormal pregnancy during pregnancy is the most common pregnancy-induced hypertension syndrome, the incidence of up to 50.5%, followed by premature rupture of membranes, and then the umbilical cord and amniotic fluid factors. Conclusion: Low birth weight related factors are still pregnancy-induced hypertension syndrome, premature rupture of membranes, it should prevent premature birth, and prevention and control of pregnancy-induced hypertension syndrome, especially in the county farming and pastoral areas.