Analysis of iodine nutritional status among pregnant women after implementation of a new standard of iodized salt in Henan Province in 2018
10.3760/cma.j.cn231583-20200403-00070
- VernacularTitle:2018年河南省盐碘新标准实施后孕妇碘营养状况调查分析
- Author:
Yang LIU
1
;
Lin ZHU
;
Xiaofeng LI
;
Jin YANG
;
Ning SUN
;
Yitian YUE
;
Heming ZHENG
Author Information
1. 河南省疾病预防控制中心地方病预防控制所，郑州 450016
- From:
Chinese Journal of Endemiology
2020;39(8):584-587
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the iodine nutritional status of pregnant women in Henan Province after implementation of new standard of iodized salt, and to provide evidence for scientific adjustment of control strategy.Methods:In 2018, according to "Henan Surveillance Program on Iodine Deficiency Disorders", 5 townships were randomly picked out based on their sub area positions of east, west, south, north and middle in each county in the non-high iodine areas of 156 non-high iodine and high iodine counties (cities, districts). Then 20 pregnant women were sampled in each chosen township to collect and determine their salt and urinary iodine contents. The iodine level in salt was determined by direction titration; the salt samples from Sichuan and other enhanced salt samples were detected by arbitration; iodine content in urine was tested by arsenic cerium catalytic spectrophometry.Results:In total, 15 430 household salt samples of pregnant women were collected and determined; the coverage rate of iodized salt was 95.4% (14 721/15 430) and the consumption rate of qualified iodized salt was 87.0% (13 426/15 430); the median of salt iodine was 25.8 mg/kg. Totally 15 378 urine samples were collected and the median urinary iodine was 188.0 μg/L. The medians of urinary iodine of early, middle and late pregnant were 190.2, 188.9 and 186.0 μg/L, respectively.Conclusions:After the implementation of new standard of iodized salt, the iodine nutritional status of pregnant women in Henan Provence is totally appropriate. The surveillance of iodine status and the universal salt prevention and control strategies among pregnant women should be continuously presented to ensure the moderate amount of iodine intake.
