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贵州省是我国地方性甲状腺肿(以下简称地甲病)的流行区,而且中小学生为高发年龄组,危害极为严重。1960年世界卫生组织公报中提出:“7～15岁儿童中,有10%或更多的人患甲状腺肿时,就算地方性甲状腺肿”。国内外各地报道,5岁前儿童患病率较低,5岁后至发育成熟患病率呈近似直线增长。为此,我们于81～85年分期分批对贵州全省九个地(州)、市、86个县1,751,501名5～20岁学生及儿童进行了地甲病流行病学调查。
Guizhou Province is a endemic goiter of endemic goiter (hereinafter referred to as “A”) in our country, and the primary and secondary school students are of high incidence age group, and the harm is extremely serious. According to the 1960 Bulletin of the World Health Organization, “when endemic goiter is found in 10% or more of children aged 7-15 years, it is endemic.” At home and abroad reported that before the age of 5 the prevalence of children is low, the prevalence of maturity after 5 years of age was approximately linear growth. To this end, we conducted an epidemiological survey of 1,751,501 students aged 5 to 20 and children aged 86 to 85 in nine prefectures, cities and 86 counties in 81-85 years in stages and in batches.