分析山东省烟台市2007年农村妇女子宫内膜异位症(endometriosis，EM)的流行病学特征，明确该病在本地区的患病状况，为该病的预防与治疗提供依据。

2007年1月至12月，采用分层抽样方式，随机抽取烟台蓬莱市的2个乡镇，每个乡镇随机抽取5个自然村，每村按户主花名册进行系统抽样，对各自然村内的18岁以上女性7832例进行《烟台市农村妇女子宫内膜异位症流行病学特征调查表》问卷调查，并对调查结果进行该病与年龄及从事职业间统计学比较(本研究程序符合本院人体试验委员会制定的伦理学标准，得到该委员会批准，并与受试者签署临床研究知情同意书)。

本次填写合格问卷为7798份，有效率为99.57%。在所有接受调查受试者中，共查出子宫内膜异位症患者为368例，患病率为4.72%。就年龄而言，25～45岁受试者该病患病率较高；就职业而言，脑力劳动者较体力劳动者患病率高。不同年龄组、不同职业受试者子宫内膜异位症患病率比较，差异均有显著意义(P<0.05)。

子宫内膜异位症好发年龄集中在25～45岁女性，脑力劳动者患病率较高，建议对相关个体定期进行筛查。这对于该病的早发现、早诊断、早治疗均具有重要意义。

To analyze epidemiological characteristics of endometriosis (EM) in rural areas of Yantai City, Shandong Province in 2007 and explore the prevalence of endometriosis and provide information for the prevention and therapy for endometriosis.

From January to December 2007, 7832 women were randomly selected from ten villages from two townships by using stratified sampling approach. All subjects were older than 18-year-old and were filled the survey. Informed consent was obtained from all participants.

The efficiency of this survey was 99.57% (7798/7832). A total of 368 endometriosis patients were found in the survey, and the prevalence was 4.72% (368/7798). In terms of age, the prevalence of 25 to 45-year-old group was highest among all groups. To the occupation, the prevalence of mental workers was the highest. The prevalence of different age groups and different occupations were statistically significant difference(P<0.05).

Endometriosis mainly concentrates in 25 to 45-year-old group and mental workers. The screening should be carried on regular time. This is significant for the early discovery, diagnosis and treatment of endometriosis.