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目的了解平远县小学生碘营养状况,为碘缺乏病防治工作提供科学依据。方法 2013年采集居民饮用水水样,用硫酸铈催化分光光度法测定水碘;采集8~10岁儿童尿样,采用砷铈催化分光光度法测定尿碘;采集学生家庭食用盐样,用直接滴定法检测食盐含碘量。结果共检测水样10份,水碘中位数2.3μg/L,属于外环境缺碘区域;共检测200名8~10岁儿童尿样,尿碘范围为21.1~1 653.0μg/L,中位数为242.0μg/L,表明平远县小学生碘营养状况为足量,但尿碘水平>300μg/L的比例(29.00%)高于<100μg/L的比例(12.00%);检测学生家庭食用盐盐样200份,未发现非碘盐,碘盐合格率、合格碘盐食用率均为100.00%。结论采取以食盐加碘为主的综合性措施是有效的,完全能够改善儿童碘营养状况,纠正碘缺乏现状。平远县小学生碘营养水平总体上是适宜和安全的,但存在一定的碘过量风险。
Objective To understand the iodine nutrition of pupils in Pingyuan County and to provide a scientific basis for the prevention and treatment of iodine deficiency disorders. Methods In 2013, samples of drinking water from residents were collected, and the water iodine was measured by cerium sulfate catalytic spectrophotometry. Urine samples from 8 to 10 years old children were collected. Urinary iodine was determined by arsenic and cerium catalytic spectrophotometry. Titration salt iodine detection of salt. Results A total of 10 water samples were collected, and the median of water iodine was 2.3 μg / L, belonging to the iodine-deficient region in the external environment. A total of 200 urine samples from 8 to 10 years old were collected. The range of urinary iodine was 21.1-1653.0 μg / The median of 242.0μg / L showed that iodine nutritional status of pupils in Pingyuan was adequate, but the proportion of urine iodine> 300μg / L (29.00%) was higher than <100μg / L (12.00%); Salt sample 200, no non-iodized salt, iodized salt pass rate, qualified iodized salt consumption rates were 100.00%. Conclusion It is effective to take comprehensive measures mainly including iodization of salt, which can completely improve children’s iodine nutrition status and correct the status of iodine deficiency. The level of iodine nutrition of primary school pupils in Pingyuan is generally appropriate and safe, but there is a certain risk of iodine excess.