目的 了解无锡市锡山区学龄儿童碘营养水平,为防治碘缺乏病(IDD)提供科学依据。方法 对锡山区8~10岁学龄儿童进行盐碘、尿碘监测,按地理分布随机采集儿童食用的碘盐及其尿样,同时对抽检学龄儿童进行甲状腺触诊和B超检查。结果 共采集盐样和尿样各200份。碘盐覆盖率为97.5% 。碘盐合格率93.0%,合格碘盐食用率95.4%,盐碘中位数为23.09 mg/kg,变异系数为22.4%。尿碘检测结果 在32.4~666.0 μg/L之间,中位数为144.6 μg/L,<50 μg/L的尿样占1.0%,<100 μg/L的尿样占19.0%,>300 μg/L的尿样占3.5%。200名抽检儿童中,经甲状腺触诊和B超检查共发现2人甲状腺Ⅰ度肿大。结论 锡山区学龄儿童碘营养水平总体适宜,达到国家消除碘缺乏病标准。

Objective To investigate the iodine nutrition condition of school children,and provide scientific evidence for the prevention and cure of iodine deficiency disorders(IDD). Methods Urinary iodine and salt iodine were tested among samples of 200 children aged 8~10 which randomly collected in Xishan dtistrict according to geographical distribution.At the same time glandula thyreoidea touch and B-mode ultrasonography were accessed in sampled children. Results A totle of 200 salt samples and 200 urine samples were collected.The iodized salt coverage rate was 97.5%,with the pass percent of 93.0%,qualified edible salt was 95.4%,iodized salt median was 23.09 mg/kg and coefficient of variation was 22.4%.The results of urine iodine varied from 32.4 μg/L to 666.0 μg/L with a median of 144.6 μg/L.The percentages of urinary iodine less than 50 μg/L and 100 μg/L were 1.0% and 19.0% respectively.The percentage of urinary iodine more than 300 μg/L was 3.5%.A total of 200 children were inspected and two of them were found to be Ⅰdegree thyroid enlargement. Conclusion The iodine nutrition condition of school-aged children in Xishan district is generally at a suitable level,which reached the national standards for the elimination of iodine deficiency disease.