2020-2025年绵阳市游仙区8～10岁儿童和孕妇碘营养监测分析

Objective To analyze the iodine nutritional status of children and pregnant women in Youxian District from March 2020 to August 2025, and scientifically evaluate the prevention and treatment effects. Methods Every year, 200 children aged 8 to 10 years and 100 pregnant women were randomly selected from primary schools in Youxian District. The iodine content in household salt samples and urine samples was tested, and perform thyroid ultrasound examinations for children. Results The median urinary iodine level in children was 183.54 μg/L, with a significant difference across years(χ2=290.56, P<0.05). The goiter rate in children was 2.25%, there was no significant difference between men and women(χ2=2.68, P>0.05). The median urinary iodine level in pregnant women was 158.09 μg/L, demonstrating significant differences among different years(χ2=53.32, P<0.05). The relative iodized salt coverage among key populations in various years showed no significant difference(χ2=9.84, P>0.05), while a significant difference was observed in the consumption rate of qualified iodized salt(χ2=30.01, P<0.05). Conclusion The iodine nutrition status of children aged 8 to 10 and pregnant women in Youxian District generally remains within the recommended range. However, in 2022, urinary iodine levels in pregnant women fell below the 150 μg/L threshold. Given the fluctuating indicators, there was a risk of insufficient iodine intake. This necessitates enhanced school health monitoring and student health education. Additionally, dynamic monitoring of pregnant women's iodine nutrition should be strengthened to guide them in scientific iodine supplementation, while we remain vigilant against both iodine deficiency and excess risks.