Abstract：Objective To understand the iodine nutritional status of key population after the implementation of the new standard of salt iodine concentration in Xishan District of Wuxi City, so as to provide the scientific evidence for the prevention and treatment of iodine deficiency disease (IDD), dynamic monitoring, and adjustment of salt iodization policy. Methods The period from 2011 to 2020 was divided into three periods: pre adjustment stage (2011), adjustment transition stage (2012-2014) and post adjustment stage (2015-2020). According to the regional distribution, the quantitative monitoring of salt iodine and urinary iodine was carried out by the random sampling method for pregnant women and school-age children aged 8-10 years. Results A total of 3 000 samples of household edible salts were detected in the three periods, of which the coverage rate of iodized salt was 97.9%, the qualified rate of iodized salt was 97.3%, and the consumption rate of qualified iodized salt was 95.6%. From 2011 to 2012, the median of iodized salt was about 30 mg/kg, which decreased to about 22 mg/kg after 2014. The difference of the median of iodized salt over the years was statistically significant (H=212.74, P<0.001). The median of urinary iodine of children before the adjustment was 277 μg/L, exceeding the appropriate amount, and after the adjustment, it was 170 μg/L, which was at the appropriate level of iodine. However, the data from 2015 to 2020 showed that the median of urinary iodine concentration of pregnant women in Xishan District was at the level of iodine deficiency. The overall difference of urinary iodine concentration and frequency distribution between the children and pregnant women over the years was statistically significant. Conclusion After the adjustment of salt iodization standard, the iodine nutritional status of children is generally appropriate, but the status of pregnant women is still at the level of general iodine deficiency, suggesting that the new iodization policy is basically applicable to children, but it still needs to be different for different people to formulate individualized iodine supplementation programs.
姚怡. 2011—2020年无锡市锡山区重点人群碘营养状况调查分析[J]. 中国校医, 2022, 36(8): 584-587.
YAO Yi. Investigation and analysis of iodine nutrition status of key population in Xishan District of Wuxi City from 2011 to 2020. Chinese Journal of School Doctor, 2022, 36(8): 584-587.
2022, Vol. 36 
