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目的：调查广西南部防城港地区男性勃起功能异常(ED)的患病率及其危险因素,并探讨国际勃起功能指数(IIEF-5)评分与美国国立卫生研究院慢性前列腺炎症状指数(NIH-CPSI)评分两者之间有无关联,阐明前列腺炎样症状(PLS)对 ED 的影响。方法由统一培训合格的工作人员,对研究对象做问卷调查及采集信息,采集的资料包括 IIEF-5评分、NIH-CPSI 评分、社会学资料、医疗就医史等基本资料。调查结束后,结合体检结果以及问卷信息,采用 SPSS 17.0软件进行数据分析。结果回收有效调查表3193份,其中 ED 者1679例(52.58%),无 ED 者1514例(47.42%),PLS 者188例(5.89%),无 PLS 者3005例(94.11%),PLS 组 ED 发生率高于非 PLS 组,差异有统计学意义(χ2=34.731,P <0.01)。ED 的发生与年龄、NIH-CPSI 总评分、婚姻状况、教育程度具有相关性(P <0.05)。IIEF-5评分和 CPSI 总评分、疼痛程度评分、生命质量(QOL)评分及排尿困难程度评分等之间有负相关性(P <0.05)。结论在广西南部防城港地区的男性中人群中,ED 的发病率较高(52.58%),尤其是 PLS 者(73.40%)。勃起功能异常的危险因素可能包括年龄、CPSI 总评分、教育文化程度、婚姻状况等。勃起功能异常的严重程度与前列腺炎样症状的患病程度有相关性。“,”Objective This article aims to investigate the prevalence and the risk factors of male erectile dysfunction (ED)in Fangchenggang area of southern Guangxi,and to explore whether the International Index of Erectile Function 5 (IIEF-5)is correlated to the National Institutes of Health Chronic Prostatitis Symptom Index.The effects of prostatitis-like symptoms (PLS)on ED are elucidated. Methods From September 2009 to December 2009,a total of 4303 male residents aged 17 to 88 years who had received medical checkup as usual in Fangchenggang district of Guangxi province were invited to take part in the survey for completing the questionnaire,data collection consisted of socio - demographics,lifestyle characteristics,health status,and medical history,and the scores of the National Institutes of Health Chronic Prostatitis Symptom Index and the International Index of Erectile Function 5 (IIEF-5)scores were recorded.Questionnaire survey and data col-lection were completed by qualified training staff.Data analysis was conducted using SPSS(17.0)software. Results A total of 31 93 qualified questionnaires were obtained.The prevalence of male adults with ED in Guangxi Fangchenggang district was 52.58% (1 679/31 93 ),15 14 cases (47.42%)without ED,188 cases (5.89%)with PLS,3005 cases (94.1 1%)without PLS.Subjects with PLS had statistically higher prevalence of ED in comparison to those without PLS (73.40% vs.5 1.28%,χ2 =34.731,P <0.01 ).The incidence of ED was associated with age,education degree,marital status and total score of the National Institutes of Health Chronic Prostatitis Symptom Index (P <0.05).There was a negative correlation among IIEF-5 and total score of the National Institutes of Health Chronic Prostatitis Symptom Index,pain score,quality of life (QOL)score and dysuria (P <0.05). Conclusion The results of this study have suggested that ED is very common among male adults in Guangxi Fangchenggang district,especially among subjects with PLS.Age,ed-ucation degree,marital status and total score of the National Institutes of Health Chronic Prostatitis Symptom Index may be risk factors for ED.The severity of ED is correlated with the degree of PLS.