环境缺碘是地方性甲状腺肿的主要病因,食盐加碘是防治本病简而易行、安全有效的方法之一.为观察碘盐在桐柏地区的防治效果,我们选择城郊公社刘湾大队作为长期效果观察基点.刘湾大队位于桐柏山区里的深山密林里,11个生产队,20个村庄,六百多口人,分居在一条南北流向的小河两岸的山谷里.居民以小麦、大米为主粮,蔬菜多是季节性青菜,海产品菜类很少。饮用水源多是河边土井,水深都不超过三米,水中严重缺碘。水碘含量分别为0.5、0.7、1.0、0.5、2.2微克/升.分型、分度及防治效果观察标准:按照中央北办1978年于秦皇岛制定的标准执行.结果1967年省防疫站在该队作过地甲病患病情况的 Environmental iodine deficiency is the main cause of endemic goiter, iodized salt is one of the simple, safe and effective prevention and treatment of the disease.In order to observe the control effect of iodized salt in Tongbai area, we choose Liuwan Brigade As the base point of long-term effect observation, the Liuwan Brigade is located in the deep jungle of the Tongbai mountainous area and has 11 production teams, 20 villages and over 600 people separated from each other in a valley where both sides of the river flow from north to south. Rice-based food, vegetables are mostly seasonal vegetables, seafood dishes rarely. More drinking water source is the river side soil, water depth is not more than three meters, a serious lack of iodine in water. Water iodine content were 0.5,0.7,1.0,0.5,2.2 micrograms / liter.Types, indexing and prevention and treatment observation standards: According to the Central North Office in Qinhuangdao in 1978 to develop standards.Results 1967 provincial epidemic prevention station in the A team made a sick condition