大同市8岁～10岁儿童尿碘水平的现状调查

Investigation on urinary iodine levels of 8-10 years-old students in Datong City

目的 了解和掌握大同市8岁~10岁儿童尿碘水平及其分布,为该市预防儿童碘缺乏病工作提供科学的依据。方法 采用多阶段随机抽样方法采取大同市不同区县8岁~10岁儿童的随机尿样,运用砷铈催化分光光度法(WS/T107.2006)检测尿碘含量。结果 共收集和检测1100份尿样,儿童尿碘中位数为166.8μg/L。儿童尿碘水平低于适宜标准者比例和超过适宜水平者分别为7.82%,31.82%。不同地区儿童的尿碘浓度有统计学差异(P<0.01)。结论 大同市8岁~10岁儿童尿碘中位数处于适宜水平,但呈现碘缺乏、碘适宜及碘过量并存的现象。应适时开展尿碘监测,根据尿碘水平及时调整儿童碘摄入量。

Objective To understand the urinary iodine levels of 8-10 years-old students in Datong,and to provide a basis for further prevention and treatment of iodine deficiency disorders(IDD).Methods A multistage randomized cluster sampling was used to collect random urine samples of 8-10 years-old students from different districts in Datong.Urine iodine concentration was determined by arsenic-cerium catalytic spectrophotometry(WS/T107.2006).Results A total of 1100 urine samples were collected and then tested,the median urinary iodine level for all students was 166.8μg/L.Students with a urinary iodine lower and higher than the recommended level accounted for 7.82%and 31.82%,respectively.Urine iodine concentrations of children from different districts were analyzed by Kruskal-Wallis test,and there was statistically significant difference(H=198.49,P<0.01).Conclusion The status of iodine nutrition in 8-10 years-old children in Datong was diverse but the average level for these students was fairly well.Urinary iodine monitoring should be carried out in time.The children's iodine intake should be adjusted in time according to the level of urinary iodine.