Iodine nutritional status of pregnant women in Hengshui City, Hebei Province from 2017 to 2023
10.3760/cma.j.cn231583-20240326-00071
- VernacularTitle:2017 - 2023年河北省衡水市孕妇碘营养状况分析
- Author:
Na ZHANG
1
;
Xiaoyan LUO
;
Haixia ZHANG
;
Na HE
Author Information
1. 衡水市疾病预防控制中心公共卫生科，衡水 053000
- Keywords:
Iodine;
Pregnant women;
Urine
- From:
Chinese Journal of Endemiology
2024;43(11):902-906
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the iodine nutritional status of pregnant women in Hengshui City, so as to provide a basis for adjusting the prevention and control strategies of iodine deficiency disorders in key populations in Hengshui City.Methods:Using a cross-sectional survey method, 100 pregnant women were randomly selected from iodine deficient counties (cities, districts) in Hengshui City from 2017 to 2023 each year. Random urine samples and household salt samples were collected once a year to measure urine iodine and salt iodine levels. The iodine nutritional status of pregnant women was evaluated and influencing factors were analyzed.Results:A total of 6 570 urine samples from pregnant women were tested, with a median urinary iodine level of 158.5 μg/L. Pregnant women with urinary iodine levels below 150 μg/L accounted for 46.0% of the total population (3 022/6 570). There was a statistically significant difference in the median urinary iodine levels among pregnant women in different years ( H = 51.52, P < 0.001), but there was no statistically significant difference in the median and frequency distribution of urinary iodine among pregnant women in different age groups ( Z = - 1.34, P = 0.181; χ 2 = 1.35, P = 0.717). There was a statistically significant difference in the median urinary iodine levels among pregnant women during different stages of pregnancy ( H = 10.61, P = 0.005), with the median urinary iodine levels in early pregnancy being higher than those in late pregnancy. Spearman rank correlation analysis results showed that the urinary iodine level of pregnant women was positively correlated with the edible salt iodine level ( r = 0.08, P < 0.001). Conclusions:The overall iodine nutrition level of pregnant women in Hengshui City has reached the recommended adequate level (150 - 249 μg/L), but some pregnant women still face the risk of iodine deficiency. We should pay more attention and do a good job in supplementing iodine for pregnant women during pregnancy.
