宿州市2008～2012年碘缺乏病监测结果分析

目的通过五年监测工作进行评估,了解2008~2012年宿州市碘缺乏病控制效果,为今后碘缺乏病防治政策与措施的制定,进一步提供科学依据。方法抽样收集宿州市5个县（区）9 660户居民的食用盐,采用GB/T13025.7-1999仲裁法测定盐中碘含量;抽取8~10岁6 602名学龄儿童采用触诊法检查甲状腺肿大情况,并选择其中3 260名学生采集日间随意尿样用砷铈催化分光光度法检测尿碘含量。结果 2008~2012年宿州市非高碘地区居民户的碘盐中位数27.10~32.60mg/kg、碘盐覆盖率99.30%~100.00%、碘盐合格率99.01%~99.67%、合格碘盐食用率98.02%~99.67%,高碘地区无碘食盐率76.72%~98.21%;非高碘地区和高碘地区的儿童尿碘中位数分别为255.5~319.0μg/L和469.0~888.8μg/L;非高碘地和高碘地区的儿童甲肿率分别为1.25%~2.0%和2.33%~3.7%。结论宿州市非高碘地区居民户碘盐质量均达到国家碘缺乏病消除标准,但高碘地区尿碘过量现象比较严重,说明高碘地区仅实行无碘食盐措施不能解决居民碘摄入过量的问题。

Analysis on monitoring results of iodine deficiency disorders in Suzhou from 2008 to 2012

Objective To understand the progress in prevention and Cure of iodine deficiency disorders（IDD） in Suzhou and to provide scientific basis for further prevention control.Methods 9 660 households in 5 districts were selected to collect their salt from 2008 to 2012.The iodine content was detected by the direct titration method.6 602 children aged 8-10 years were selected to detect urinary iodine level by Ceric Arsenite Catalytic spectrophotometric method,the thyroid goiter were detected by palpation.Results From 2008 to 2012,in iodine deficiency areas of Suzhou,the median of iodine content in salt was ranged 29.68~31.51mg/kg,the coverage rate of iodinated salt was kept from 99.3% to 100%,qualified iodized salt was kept from 99.01% to 99.67% and edible qualified iodized salt rate was kept from 98.02% to 99.67%.In high-iodine areas,the rate of edible salt without iodine was ranged from 76.72% to 98.21%.The median of urinary iodine in iodine deficiency areas and high-iodine areas were 255.5~319.0μg/L and 469.0-888.8μg/L,goiter rate were 1.25%~2.0% and 2.33%~3.7% respectively.Conclusions From 2008 to 2012,the rate of household qualified iodized salt in Suzhou achieved the national standardization of IDD elimination goal,but the value of urinary iodine exceeded the high value greatly in high-iodine areas.Just by carrying out salt without iodine cannot overcome iodine uptake excessively.