Analysis of iodine nutrition monitoring results of pregnant women in Jiaxing City from 2018 to 2022
Objective To understand the salt iodine and urine iodine levels of pregnant women in Jiaxing City from 2018 to 2022,so as to provide reference for guiding pregnant women to supplement iodine scientifically.Methods From 2018 to 2022,21 pregnant women were randomly selected from 5 townships(streets)in 7 counties(cities and districts)of Jiaxing City,and salt samples and random urine samples were collected from their homes for quantitative detection of urine iodine and iodized salt.Results A total of 4 249 salt samples were collected from pregnant women in Jiaxing City from 2018 to 2022.The median iodized salt was 23.3 mg/kg,the iodized salt coverage rate was 88.1%,and the qualified iodized salt consumption rate was 83.9%.The median salt iodine of pregnant women in different years and regions had statistical significance(P<0.05).A total of 4 249 urine samples from pregnant women were detected.The median urine iodine was 129.9 µg/L,59.6% were iodine deficient,26.3% were suitable for iodine nutrition,12.1%were super suitable for iodine nutrition,and 2% were excessive.In 2022 alone,the coverage rate of iodized salt and the consumption rate of qualified iodized salt in pregnant women were both higher than 90%,and the median urine iodine of pregnant women reached the appropriate level of iodine nutrition.The urinary iodine of pregnant women in different regions,age,pregnancy and salt type was lower than the appropriate level of iodine nutrition,and there were statistically significant differences in the median urinary iodine of pregnant women among all groups(P<0.05).Conclusion The overall iodine nutrition of pregnant women in Jiaxing City from 2018 to 2022 had not reached the appropriate level,and there was a risk of insufficient iodine intake.It is necessary to strengthen scientific iodine supplement education for pregnant women,continue to carry out iodine nutrition monitoring for pregnant women,and formulate reasonable and effective iodine supplement prevention and control strategies to improve the iodine nutrition level of pregnant women.