云南是地方性甲状腺肿(地甲病)的历史高发区。本世纪四十年代,国内学者曾先后在37个县187,645人中进行调查,共查出患者28,879例,平均患病率为15.4％,某中18个县患病率在10～84％之间。自1954年起,省内不规则地实施了食盐加碘预防,但流行情况尚属不清。为此,仅就1982—1984年对127个县市东西南北中五个方位抽样调 Yunnan is endemic goiter (toremia) high incidence of history. In the 1940s, domestic scholars conducted surveys in 187,645 people in 37 counties. A total of 28,879 patients were found, with an average prevalence rate of 15.4% and a prevalence rate of 18.8% in some areas among 10 to 84% . Since 1954, the province has irregularly implemented iodized salt prevention, but the epidemic is still unclear. For this purpose, only the sample of five counties in east-west, north-south of 127 counties from 1982 to 1984 was sampled