2021-2024年宝鸡市陈仓区重点人群盐碘与尿碘监测分析

Objective To grasp the current status and changing trends of iodine nutrition in two key populations, namely 8～10 year old children and pregnant women, in Chencang District, Baoji City from 2021 to 2024, and to provide a basis for the precise prevention and control of iodine deficiency disorders. Methods Stratified random sampling was used to select the research subjects. Household edible salt samples and midstream urine samples of the subjects were collected to detect the levels of salt iodine and urinary iodine respectively, and SPSS software was used for statistical analysis. Results From 2021 to 2024, a total of 798 salt samples from children's families and 399 salt samples from pregnant women's families were collected, with the qualified rate of iodized salt being ≥98% and the median salt iodine content being>24 mg/kg in each year. The median urinary iodine of children was 210.25 μg/L, with 18.30% of them having iodine deficiency, 53.76% having excessive and super-optimal iodine, and the urinary iodine of boys was higher than that of girls. The median urinary iodine of pregnant women was 196.34 μg/L, with 33.58% of them having iodine deficiency and 29.07% having super-optimal iodine. There were significant differences in urinary iodine levels among children and pregnant women in different years(P<0.05). Conclusion The iodine nutrition of key populations in Chencang District is generally up to standard, and the effect of prevention and control of iodine deficiency disorders is remarkable. However, there are problems of iodine deficiency in pregnant women and excessive iodine in some children. It is necessary to strengthen market supervision, carry out precise health education, and promote a differentiated iodine supplementation strategy.