目的调查昆山市重点人群的碘营养状况,为科学防治碘缺乏病提供科学依据。方法通过多阶段分层随机抽样法分别抽取8~10岁学生200名、孕妇100名,开展碘营养水平监测。结果碘盐覆盖率,碘盐合格率,合格碘盐食用率分别为100%、99.67%、99.67%;8~10岁学龄儿童家庭户食用盐的碘均数为23.17 mg/kg,尿碘中位数(P_(25)~P_(75))为177.40(120.85~246.40)μg/L;孕妇食用盐碘均数为23.10 mg/kg,尿碘中位数(P_(25)~P_(75))为151.25(87.93~202.02)μg/L;但是学龄儿童、孕妇作为碘缺乏的敏感人群分别有17.0%和50.0%尿碘值均未达到适宜标准。结论昆山市重点人群碘营养总体处于适宜状况,但是孕妇碘营养水平比学龄儿童人群低,存在碘缺乏的危险,应加强对各类重点人群的碘营养水平监测。 Objective To investigate the iodine nutrition status of key population in Kunshan City and provide a scientific basis for scientific prevention and treatment of iodine deficiency disorders. Methods Totally 200 students aged 8-10 and 100 pregnant women were enrolled in the study. The levels of iodine nutrition were monitored by stratified random sampling. Results The iodized salt coverage rate, the qualified rate of iodized salt and the qualified iodized salt rate were 100%, 99.67% and 99.67%, respectively. The average iodine number of salt intake of school-age children aged 8-10 was 23.17 mg / kg, The mean number of iodine in pregnant women was 23.10 mg / kg, and the median of urinary iodine (P 25 P 75) was 177.40 (120.85 ~ 2466.40) μg / L. )) Was 151.25 (87.93 ~ 202.02) μg / L. However, 17.0% and 50.0% urinary iodine values ​​of school-age children and pregnant women who were sensitive to iodine deficiency did not reach the appropriate standard. Conclusion The iodine nutrition of key population in Kunshan City is generally suitable. However, the iodine nutrition level of pregnant women is lower than that of school age children, so there is a risk of iodine deficiency. The monitoring of iodine nutrition of various key population should be strengthened.