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目的查清山西省高碘地区分布特征,为病区划分、干预措施实施提供依据。方法在山西省进行20个县(市、区)的水碘及病情调查,甲状腺检查采取触诊和B超法,尿碘测定采用砷铈催化分光光度法,盐碘测定采用砷铈氧化还原法,智力测定采用瑞文测验。结果在调查20个市(县、区)的160个乡镇中,共检测水碘1 872份,有29个乡镇水碘中位数高于150μg／L。高碘乡镇儿童尿碘中位数460．50μg/L,儿童甲状腺(B 超法)肿大率13．08％,平均智商114,合格碘盐食用率72．20％;非高碘乡镇儿童尿碘中位数310．30μg／L,儿童甲状腺(B超法)肿大率7．32％,合格碘盐食用率83．13％,平均智商112。结论山西省在10个市(县、区)的29 个乡镇有高碘分布,高碘乡镇儿童甲状腺肿大率、尿碘中位数、智商都显著高于非高碘乡镇,盐碘仍是导致高碘甲状腺肿的一个重要原因,以停供碘盐为主的防治措施有待进一步落实。
Objective To investigate the distribution characteristics of high iodine in Shanxi Province and provide the basis for the ward division and the implementation of intervention measures. Methods Water iodine and disease investigation were performed in 20 counties (cities and districts) in Shanxi Province. Palpation and B-ultrasonography were performed for thyroid examination, urinary iodine determination by arsenic-cerium catalytic spectrophotometry, and salt-iodine determination by arsenic-cerium redox method , Intelligence test using Raven test. Results A total of 1 872 iodized water samples were detected in 160 townships in 20 cities (counties and districts). The median iodine concentration in 29 townships was higher than 150 μg / L. The urinary iodine median of children with high iodine was 460.50μg / L, the rate of enlargement of thyroid (B-ultrasonography) was 13.08%, the average IQ was 114 and the rate of qualified iodized salt was 72.20% Iodine median 310.30μg / L, children with thyroid (B super-law) swelling rate of 7.32%, qualified iodized salt consumption rate of 83.13%, with an average IQ of 112. Conclusion Shanxi Province has high iodine distribution in 29 townships in 10 cities (counties and districts). The goiter rate, median urinary iodine, and IQ of children in high-iodine township children are significantly higher than those of non-iodized townships. Salt iodine is still Lead to high iodine goiter an important reason to stop for iodized salt-based prevention and control measures to be further implemented.