Iodine nutrition status of pregnant women in Jiangmen City of Guangdong Province from 2018 to 2023
10.3760/cma.j.cn231583-20240624-00180
- VernacularTitle:2018 - 2023年广东省江门市孕妇碘营养状况分析
- Author:
Guofei TAN
1
;
Jinwen ZHAO
1
;
Ruiying WU
1
Author Information
1. 江门市疾病预防控制中心食品安全与地方病预防控制所，江门 529000
- Publication Type:Journal Article
- Keywords:
Iodine;
Pregnant women;
Salts;
Urine
- From:
Chinese Journal of Endemiology
2024;43(12):964-967
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the iodine nutrition status of pregnant women in Jiangmen City.Methods:From 2018 to 2023, a multi-stage stratified random sampling method was adopted to analyze the iodine nutrition status of pregnant women in 7 counties (cities and districts) of Jiangmen City. Each county (city and district) was divide into 5 sampling areas based on east, west, south, north, and center directions. One town (street) was selected from each area, and 20 pregnant women were selected in each town (street). A total of 700 pregnant women were selected each year and their urinary iodine and salt iodine levels were tested; and their iodine supplementation status in 2023 was investigated.Results:A total of 4 200 urine samples from pregnant women were tested, with a median urinary iodine level of 158.50 μg/L. Over the course of 6 years, the median urinary iodine levels of pregnant women were 138.55, 161.30, 153.20, 166.80, 166.60, and 159.00 μg/L, respectively. A total of 4 200 salt samples were tested, with a median salt iodine of 24.50 mg/kg. The median range of salt iodine for pregnant women over 6 years was 23.70 - 24.90 mg/kg, and the coverage rate of iodized salt ranged from 98.43% (689/700) to 99.71% (689/700). The qualified iodized salt consumption rate ranged from 96.57% (676/700) to 99.14% (694/700). The median urinary iodine levels (158.70, 138.00, 89.95 μg/L) of pregnant women who consumed qualified iodized salt, unqualified iodized salt, and no iodized salt were compared, and the difference was statistically significant ( H = 8.18, P = 0.017). The iodine supplementation rate of pregnant woman was 99.57% (697/700) in 2023. Conclusions:The overall iodine nutrition of pregnant women in Jiangmen City is insufficient ( < 150 μg/L ) in 2018 and maintained at an appropriate level (150 - 249 μg/L) from 2019 to 2023. However, the iodine nutrition of pregnant women fluctuates within the lower limit of the standard, posing a risk of iodine deficiency.
