我们于1987年12月对新疆乌苏县城镇采用群体抽样法进行了一次流行病学抽查。调查对象分两组:职业人群包括外贸局、茶畜公司、皮革厂、皮鞋厂、食品公司(包括冷库和食品厂)和兽医站;非职业人群有县政府、县委、公安局、检察院、法院和医药公司。此次调查796人(在岗职工),其中职业人群361人,非职业人群435人,年龄在19～60岁之间,民族为汉、维、回、 In December 1987, we carried out an epidemiological examination by using population sampling in the towns and cities of Wusu County in Xinjiang. The survey respondents divided into two groups: occupation groups, including foreign trade, tea companies, tanneries, leather shoes factory, food companies (including cold storage and food plants) and veterinary stations; amateur groups are county government, county Party committee, police station, procuratorate, court And pharmaceutical companies. The survey of 796 people (on-the-job workers), of which 361 occupational groups, 435 non-occupational groups, aged 19 to 60 years old, ethnic Han, Victoria, Hui,