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| Analysis of iodine nutrition monitoring results of pregnant women in Hongkou District, Shanghai |
| LIU Tiantian, QI Deyun, LU Junying |
| Department of Children’s Eye Diseases Prevention, Shanghai Hongkou District Center for Disease Control and Prevention, Shanghai 200080, China |
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Abstract Objective To monitor and analyze salt iodine content and urinary iodine levels among pregnant women in Hongkou District, Shanghai, and provide a basis for scientific iodine supplement for pregnant women. Methods From 2019 to 2021 , a total of 450 pregnant women were selected by a stratified random sampling method in Hongkou District, Shanghai. Salt samples of families and random urine samples of pregnant women were collected on a certain day, and the levels of salt iodine and urinary iodine were tested to analyze iodine nutrition levels. Results A total of 450 pregnant women’s home salt samples were tested. The coverage rates of iodized salt from 2019 to 2021 were 66.7%, 57.3% and 58.0%, respectively. Consumption rates of qualified iodized salt were 47.3%, 46.0%, and 46.7%, respectively. A total of 450 random urine samples from pregnant women were tested. The overall median urinary iodine level was 149.0 μg/L. Among the pregnant women, 26.4% were in an iodine-appropriate state and 50.4% were in an iodine-deficient state. There was no statistically significant difference in the distribution of iodine nutrition levels among pregnant women during different stages of pregnancy （P>0.05）. Conclusion The iodine nutritional status of pregnant women in Hongkou District, Shanghai, is insufficient. We should increase the promotion and popularization of iodized salt among pregnant women, carry out a series of targeted education activities, and continuously improve the coverage rate of iodized salt and the consumption rate of qualified iodized salt.
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