昆山市2001～2009年低出生体重儿流行病学分析

目的:描述昆山市2001～2009年9年间低出生体重(LBW)发生率,分析产妇及胎儿特征对低出生体重的影响。方法:利用昆山市《围产保健监测系统》研究33 631对产妇与胎儿,使用单因素与多因素无序多分类Logistic回归分析来估计各因素对出生体重的影响。结果:LBW发生率为1.86%。产妇超重肥胖、有人工流产史、男性胎儿可减小LBW发生风险。产妇体质指数偏低、初产妇、习惯性流产史可增加LBW发生风险。按照体质指数(BMI)分层,相对于LBW,BMI偏低组,高水平的孕期体重变化均可减小LBW胎儿发生风险。BMI正常组,高水平的孕期体重变化可减小LBW胎儿发生风险。没有发现在超重与肥胖组产妇孕期体重变化与分娩LBW胎儿之间存在统计学关联。结论:LBW发生率为1.86%,产妇与胎儿特征综合影响LBW。体重偏低与正常人群中,高水平的孕期体重变化可减小LBW发生风险。

Epidemiological analysis on low birth weight infants in Kunshan city from 2001 to 2009

Objective:To describe the icidence rate of low birth weight(LBW) in Kunshan city from 2001 to 2009,and analyze the effects of maternal and fetal characteristics on LBW.Methods:A total of 33 631 pairs of lying-in women and fetuses were researched based on Kunshan perinatal health care monitoring system,the effects of various factors on birth weight was analyzed by univariate and multivariate disordered multiple classification Logistic regression analysis.Results:The incidence rate of LBW was 1.86%.Maternal overweight and obesity,history of artificial abortion,and male fetuses reduced the risk of LBW.Maternal overweight and obesity,previous induced abortion,male fetuses were associated with the decreasing incidence of LBW,maternal BMI less than 18.5 kg/m,moderate and severe pregnancy-induced parity,previous habitual abortion were associated with the increasing incidence of LBW.Conclusion:The prevalence of low birth weight is 1.86%.Maternal and fetal characteristcs are associated with the increase of the prevalence of LBW as a whole.