Analysis of iodine nutritional status monitoring results of children aged 8 - 10 and pregnant women in Xining City, Qinghai Province
10.3760/cma.j.cn231583-20220930-00332
- VernacularTitle:青海省西宁市8 ~ 10岁儿童及孕妇碘营养状况监测结果分析
- Author:
Xun CHEN
1
;
Mingjun WANG
1
;
Hongting SHEN
1
;
Jinmei ZHANG
1
;
Yanan LI
1
;
Peichun GAN
1
;
Lansheng HU
1
;
Shenghua CAI
1
;
Hong JIANG
1
;
Peizhen YANG
1
;
Jing MA
1
;
Huizhen YU
1
;
Xianya MENG
1
Author Information
1. 青海省地方病预防控制所地方病预防控制科，西宁 810000
- Publication Type:Journal Article
- Keywords:
Iodine;
Urine;
Salts;
Child;
Pregnant women
- From:
Chinese Journal of Endemiology
2025;44(2):124-127
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the iodine nutrition status of children aged 8 - 10 and pregnant women in Xining City, Qinghai Province.Methods:From 2019 to 2021, a stratified cluster sampling method was used to divide 7 counties (districts) under the jurisdiction of Xining City, Qinghai Province into 5 sampling areas according to east, west, south, north, and center each year. One township (town, street) was selected from each area. Forty non boarding students aged 8 to 10 from each primary school (half male and half female, age balanced) and 20 pregnant women from each township (town, street) location were selected to collect edible salt samples at home and a random urine sample to measure salt iodine and urinary iodine level. B-ultrasound was used to measure thyroid volume in children and the goiter rate was calculated.Results:A total of 6 534 samples of household edible salt were collected from children and pregnant women, with an average salt iodine concentration of 25.58 mg/kg. The coverage rate of iodized salt was 97.50% (6 371/6 534), and the qualified iodized salt consumption rate was 89.46% (5 845/6 534). A total of 4 362 urine samples were collected from children, with a median urinary iodine level of 183.10 μg/L. The difference between different years was statistically significant ( H = 20.27, P < 0.001). A total of 2 169 urine samples were collected from pregnant women, with a median urinary iodine level of 168.90 μg/L. The difference between different years was statistically significant ( H = 107.09, P < 0.001). A total of 3 336 cases of thyroid gland examination were conducted in children, including 33 cases of thyroid enlargement, with a goiter rate of 0.99%. There was a statistically significant difference between different years (χ 2 = 15.00, P < 0.001). Conclusion:From 2019 to 2021, children aged 8 to 10 and pregnant women in Xining City are at an appropriate level of iodine, and the achievements in prevention and treatment of iodine deficiency disorders still need to be continuously consolidated.
