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1 材料与方法1.1 样本选择全区每县市按东西南北中地理位置各抽取5个乡镇,每乡镇再按不同方位抽3～5个小学,每个小学随机抽取40名8～10岁学生并采水样1份。每县市各抽一个小学用 B 超法检查甲状腺体积。1.2 方法甲状腺肿按国际标准,触诊法分为0、1、2度,B 超法按《B超法检查甲状腺体积技术要则》进行。水碘采用砷—铈接触法检查。2 结果与分析2.1 甲状腺肿流行情况触诊法累计检查6760人,1159人甲状腺肿大,甲状腺肿大率为17.14%;
1 Materials and Methods 1.1 Sample Selection Each county and municipality in the whole region selected 5 townships and townships according to geographical location of east, west, south and north China. Each township then chooses 3 to 5 primary schools in different directions. Each primary school randomly selects 40 students aged 8 to 10 years Water sampling 1. Each county pumping a primary school with B-ultrasonography to check the thyroid volume. 1.2 Methods According to international standards, palpation, palpation method is divided into 0,1,2 degrees, B-ultrasonography according to “B-method to check the thyroid volume technical guidelines.” Water iodine using arsenic - cerium contact examination. 2 Results and Analysis 2.1 The prevalence of goiter palpation method cumulative examination of 6760 people, 1159 goiter, goiter rate was 17.14%;