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碘是人体必需的微量元素,是甲状腺激素的重要成分。近来的调查研究证明,碘缺乏不仅可引起地甲病,而且对人体的生长发育,特别是智力发育有明显的影响。在国外,已有多人用不同的智力测验方法证实病区儿童智商普遍低于非病区对照组。Correa等(1980)根据厄瓜多尔病区的资料提出,甲状腺肿、克汀病与当地居民智商呈函数关系。总的趋势是:地克病患病率随地甲病患病率增高而增高,而智商则随“两地病”患病率的增高而下降。但当甲肿患病率达到50%,
Iodine is an essential trace element of the human body, is an important component of thyroid hormone. Recent research shows that iodine deficiency can cause not only a disease, but also on the human body’s growth and development, especially intellectual development has a significant impact. Abroad, more than one person has been using different intelligence tests to confirm that the ward children’s IQ is generally lower than that of the non-ward control group. According to Ecuador’s Ward’s data, Correa et al. (1980) suggested that goiter and cretinism are functionally related to the IQ of local residents. The general trend is that the prevalence of Dick’s disease will increase with the prevalence of Dung’s disease, and the IQ will decrease with the prevalence of Dung’s disease. However, when the prevalence of acne reached 50%