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目的:了解在当前的加碘盐浓度下,天津市学龄儿童、育龄妇女和孕妇3种重点人群的碘营养现状。方法:采用现况调查方法,选择了天津市和平区和静海县两个调查点,调查学龄儿童、育龄妇女、孕妇3种重点人群的尿碘、盐碘、饮水碘情况。结果:①天津市和平区和静海县居民户的盐碘中位数为29.60 mg/kg,两地的盐碘水平趋于一致;②天津市静海县为高水碘地区,该地区饮水碘含量可达到208.69μg/L,而和平区的样本饮水碘含量大多<10.00μg/L,甚至<5.00μg/L;③天津市和平区和静海县学龄儿童、育龄妇女和孕妇3种重点人群的尿碘中位数均达到了150.00μg/L以上,其中两个地区的孕妇尿碘中位数达到了226.81μg/L,而两地的育龄妇女的尿碘水平更是达到了252.53μg/L;④不同孕期之间尿碘的测定值存在差异,应建立不同孕期的正常值。结论:①当前的加碘盐碘浓度是适宜的,城市和农村的学龄儿童、育龄妇女和孕妇3种重点人群的碘营养状况基本处于良好和适宜水平;②外环境中碘含量的多少,直接影响不同人群的碘营养状况;③应根据当地实际情况,有针对性地指导不同人群的补碘工作。
OBJECTIVE: To understand the status of iodine nutrition in three key populations of school-age children, women of childbearing age and pregnant women in Tianjin under the current iodized salt concentration. Methods: Based on the investigation of current situation, two investigation points, Heping District and Jinghai County, were selected to investigate urinary iodine, salt iodine and drinking water iodine in three kinds of key population of school-age children, women of childbearing age and pregnant women. Results: ① The median salt-iodine concentration of households in Heping District and Jinghai County in Tianjin was 29.60 mg / kg, and the salt-iodine levels tended to be the same in both places. ② In Jinghai County, Tianjin, Which can reach 208.69μg / L, while the drinking water samples in Heping District are mostly less than 10.00μg / L and even less than 5.00μg / L; ③The urinary contents of urine in three drinking water groups of school-age children, women of childbearing age and pregnant women in Heping District and Jinghai County, The median of iodine reached above 150.00μg / L. The median urinary iodine of pregnant women in two regions reached 226.81μg / L, while the urinary iodine level of the women of childbearing age in the two regions reached 252.53μg / L. ④ urine iodine determination between different gestations there are differences, should establish the normal value of different gestations. Conclusions: ① The current iodized salt iodine concentration is suitable, and the iodine nutrition status of school-age children, women of childbearing age and pregnant women in urban and rural areas is basically at a good and appropriate level; ② The iodine content in the external environment is directly Affect the iodine nutrition status of different groups of people; ③ according to the local actual situation, targeted to guide different groups of iodine supplement work.