2018—2020年二七区重点人群碘营养监测结果分析

Surveillance results of iodine nutrition of the key populations in Erqi District from 2018 to 2020

目的 掌握二七区重点人群的尿碘水平,为科学补碘提供依据。方法 根据《郑州市重点人群碘营养监测方案》,持续开展重点人群(育龄妇女、孕妇、哺乳期妇女、0~2岁婴幼儿、8~10岁学龄儿童)尿碘监测工作,尿碘测定采用尿中碘的砷铈催化分光光度计法。结果 2018—2020年各人群尿碘中位数分别为:8~10岁学龄儿童166.2、154.5、218.3μg/L,孕妇159.5、169.2、181.7μg/L,0~2岁婴幼儿207.9、216.7、208.8μg/L,哺乳期妇女121.5、138.0、139.7μg/L,育龄妇女201.5、157.4、196.3μg/L。不同人群尿碘中位数经统计学检验,哺乳期妇女尿碘水平普遍低于8~10岁儿童、孕妇和0~2岁婴幼儿尿碘水平(调整后P<0.05),2020年8~10岁儿童和孕妇尿碘水平较2018年有所提高(调整后P<0.05)。结论 2018—2020年二七区5类重点人群碘营养总体保持适宜水平,孕妇和哺乳期妇女有碘营养缺乏的风险。因此,应继续加强重点人群碘营养监测,进行分类指导,健康干预,防止碘过量或碘缺乏给人们带来的危害。

Objectives To understand the urinary iodine level of key populations in Erqi District, and to provide basis for scientific iodine supplement.Methods According to Zhengzhou Surveillance Program of Iodine Nutrition for Key Populations, the urine iodine monitoring of key populations(women of childbearing age, pregnant women, lactating women, infants of 0-2 years age and schoolchildren of 8-10 years old) was continuously carried out using arsenic cerium catalytic spectrophotometry.Results From 2018 to 2020,the medians of urinary iodine were 166.2,154.5 and 218.3 μg/L for schoolchildren aged 8-10;159.5,169.2 and 181.7 μg/L for pregnant women;207.9,216.7 and 208.8 μg/L for infants aged 0-2 years;121.5,138.0 and 139.7 μg/L for lactating women;201.5,157.4 and 196.3 μg/L for women of childbearing age.According to the statistical test, the urinary iodine level of lactating women was generally lower than that of 8-10-year-old children, pregnant women and 0-2-year-old infants(P<0.05 after the adjustment).The urinary iodine levels of 8-10-year-old children and pregnant women in 2020 were higher than those in 2018(P<0.05 after the adjustment).Conclusions From 2018 to 2020,the iodine nutrition levels of five key groups in Erqi District maintained appropriate.However, pregnant women and lactating women were at risk of iodine deficiency.Therefore, we should continue to strengthen the monitoring of iodine nutrition of key populations, carry out classified guidance and health intervention to prevent the harm of iodine excess or iodine deficiency on people.