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目的了解现行的碘盐水平下,内蒙古部分地区重点人群的碘营养现状。方法在选取的城市和农村调查点,采用一次性点状调查方式。盐碘测定采用直接滴定法;尿碘、乳汁碘测定采用砷铈催化分光光度测定法;水碘检测采用砷铈氧化还原法。结果①触诊肿大率为6.0%,B超肿大率为4.0%;②5种人群尿碘中位数均达到了100μg/L以上,表现为婴幼儿>学龄儿童>育龄妇女>哺乳期妇女>孕妇;③城市和农村盐碘中位数分别为30.4和27.5mg/kg,碘盐覆盖率分别为97.7%和97.9%;④乳汁碘达到了100～200μg/L的适宜水平;⑤农村水中含碘量大于城市。结论目前盐碘水平可满足不同人群碘营养水平,孕妇和哺乳期妇女碘水平相对偏低,8～10岁儿童不能够完全代表其他人群碘水平。
Objective To understand the status of iodine nutrition in key population in some areas of Inner Mongolia under the current iodized salt level. Methods In the selected cities and rural investigation points, a one-point punctual survey method was used. Salt iodine determination using direct titration; urinary iodine, milk iodine determination using arsenic cerium catalytic spectrophotometry; water iodine detection using arsenic cerium redox method. Results ① The palpation rate was 6.0% and the rate of B-edema was 4.0%. ② The urinary iodine median of the five populations reached 100μg / L or above, showing infants and children> school-age children> women of childbearing age> lactating women > Pregnant women; ③The median of salt and iodine in urban and rural areas were 30.4 and 27.5mg / kg respectively, and the coverage of iodized salt was 97.7% and 97.9% respectively; ④ Milk iodine reached the appropriate level of 100 ~ 200μg / L; Iodine content is greater than the city. Conclusions At present, the level of iodine and iodine can meet the iodine nutrition level of different populations. The iodine level of pregnant women and lactating women is relatively low. Children aged 8-10 can not completely represent the iodine level of other populations.