中文摘要：

目的分析鄂州市早产的流行状况及其影响因素,为预防早产的发生提供科学依据。方法研究对象为2010年1月—2014年12月在某妇幼保健院分娩的孕满28周的孕产妇24 145例,收集分娩记录资料,采用χ2检验和Logistic回归分析早产发生的危险因素。结果早产平均发生率为4.1%,产次（OR：1.15,95%CI：1.01~1.30）、有流产史（OR：1.14,95%CI：1.00~1.32）、多胎妊娠（OR：18.33,95%CI：15.03~22.35）、男性婴儿（OR：1.19,95%CI：1.04~1.37）是早产发生的危险因素。结论鄂州市早产率近5年来逐年下降,对于早产高危人群应加强孕期监护,预防早产的发生。

英文摘要：

Objectives The aims of this study were to explore the epidemiological characteristics and potential risk factors of preterm birth in Ezhou city.Methods The obstetric medical records of 24 145 maternal whose gestational age were more than 28 weeks from 2010 to 2014in Ezhou Maternity and Child Healthcare Hospital were obtained.Chi-square and logistic regression were used for the analysis.Results The rate of preterm birth was 4.1%.Parity（OR=1.15）,miscarriage（OR=1.14）,multiple births（OR=18.33）and male infants（OR=1.19）were risk factors of preterm birth.Conclusions The prevalence of preterm birth in E Zhou decreased during the recent 5years.It is necessary to provide prenatal health care for the high risk population to prevent preterm birth.