为了摸清义乌市尘肺病发病情况，探讨其发生发展规律，为制定义乌市尘肺防治方案提供依据，我们于１９９９年１０月对１１８例尘肺病例进行流行病学调查分析。 对象与方法１　对象　义乌市辖区内全民、集体、乡镇企业中已经尘肺诊断小组确诊的尘肺病人１１８例，其中死亡病例３ In order to find out the incidence of pneumoconiosis in Yiwu City and explore the occurrence and development of it, and to provide basis for the development of pneumoconiosis prevention and control plan in Yiwu City, we conducted epidemiological investigation on 118 cases of pneumoconiosis in October 1999. Subjects and methods 1 object Yiwu city area under the jurisdiction of all the people, collectives, township and village enterprises have been diagnosed pneumoconiosis group of 118 patients with pneumoconiosis, including deaths 3