Analysis on urinary iodine level of school-age children aged 8 - 10 in Shaanxi Province from 2017 to 2020
10.3760/cma.j.cn231583-20210812-00261
- VernacularTitle:2017 - 2020年陕西省8~10岁学龄儿童尿碘水平分析
- Author:
Xuejuan GAO
1
;
Jili HUA
;
Gang NIU
;
Shanshan LI
;
Hongxing DAI
;
Dawei GUO
;
Gang DUAN
Author Information
1. 陕西省地方病防治研究所碘缺乏病与高碘防研室，西安 710000
- Keywords:
Child;
Urine;
Iodine;
Monitoring
- From:
Chinese Journal of Endemiology
2022;41(7):576-579
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To learn about the iodine nutrition level of school-age children aged 8 - 10 in Shaanxi Province.Methods:From 2017 to 2020, in counties (cities, districts) under the jurisdiction of Shaanxi Province, one township (street) was selected from five directions: East, West, South, North and Middle, one primary school was selected from each township (street), and 42 non-boarding school-age children aged 8 - 10 (age balanced, half male and half female) were selected from each primary school. Random urine samples of children were collected once, and urinary iodine was detected by arsenic-cerium catalytic spectrophotometry.Results:A total of 91 766 children's urine samples were tested from 2017 to 2020, and the median urinary iodine was 221.7 μg/L. Urinary iodine < 100 μg/L accounted for 10.4% (9 554/91 766), 100 - < 200 μg/L accounted for 32.3% (29 602/91 766), 200 - < 300 μg/L accounted for 30.6% (28 065/91 766), and ≥300 μg/L accounted for 26.7% (24 545/91 766). The median of children's urinary iodine in each year was 228.5, 218.0, 211.7, and 230.1 μg/L, respectively, the difference between years was statistically significant ( H = 278.66, P < 0.001). Conclusion:From 2017 to 2020, the iodine nutrition of school-age children aged 8 - 10 in Shaanxi Province is generally in an ultra-suitable state.
