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资料来源与方法本调查按省、市、区劳保单位进行分层整群抽样，共调查杭州市劳保医疗对象３６１８名．内容是调查之日起前二周内的门诊和１９９４年的住院情况．结果与分析一、门诊需术与利用１、患病率：３６１８名劳保医疗对象，两周患病１７９５人次，两周患病率为４９．６
Data Sources and Methods This survey was conducted by stratified cluster sampling by provincial, municipal, and district labor insurance units. A total of 3618 laborers were surveyed in Hangzhou. The content is the outpatient service within the first two weeks of the investigation and the condition of hospitalization in 1994. Results and Analysis 1. Outpatient required surgery and utilization 1. Prevalence: 3618 labor insurance medical workers, 1795 visits in two weeks, two weeks prevalence rate of 49.6