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对大兴县南各庄乡水碘较高的 9个自然村 7～ 13岁儿童碘营养状况进行调查 ,以确定该地区地甲肿流行是否与当地饮用水碘含量过高有关。经对该地区饮用水源含碘量测定 ,儿童尿碘水平及甲肿率检测。结果显示 :饮用水碘含量最低为2 4 0 μg/L ,最高为 6 98 0 μg/L ,均属高碘水源 ;尿碘中位数为5 86 7μg//L。甲状腺肿大者 5 9人 ,肿大率 11 94%。表明该地区为高水碘地区 ,7～ 13岁学生中存在甲状腺肿流行。且饮水是甲肿率高的主要原因
The iodine nutritional status of 7- to 13-year-old children in 9 natural villages with high water iodine in Nangezhuang Township, Daxing County was investigated to determine whether the epidemic of tuberculoma in this area was related to the high local iodine content of drinking water. The determination of iodine in drinking water sources in the area, urinary iodine levels in children, and the rate of onychomycosis were examined. The results showed that the lowest iodine content in drinking water was 240 μg/L, and the highest was 698 0 μg/L, all of which were high iodine water sources. The median urinary iodine was 5 86 7 μg/L. The goiter was 5.9 and the swelling rate was 11 94%. This indicates that the area is a high-water iodine area and there is a prevalence of goitre in 7- to 13-year-old students. And drinking water is the main reason for high rates of onychoemia