Survey of “iodine suitable” region in iodine-deficient areas in Shandong province
10.3760/cma.j.issn.1000-4955.2012.01.019
- VernacularTitle:山东省缺碘地区中的“适碘”地区调查
- Author:
Wen, JIANG
;
Jin-biao, WANG
;
Xiao-ming, WANG
;
Yuan, LIU
;
Xin, WANG
;
Ju-mei, HUANG
;
Jian-chao, BIAN
- Publication Type:Journal Article
- Keywords:
Drinking;
Iodine;
Distribution;
Research;
Outcome assessment
- From:Chinese Journal of Endemiology
2012;31(1):71-73
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo look into the distribution of “iodine suitable” region in iodine-deficient areas in Shandong province and to provide a scientific basis for guiding the redesignate of iodine-deficient areas and launch scientific supply of iodine.Methods One to 3 copies of water source samples were collected in 105 existing iodine-deficient counties by village.Water iodine content was detected by arsenic-cerium catalytic spectrophotometry.The areas with water iodine content below 10 μg/L was defined as iodine-deficient areas and among 10 - 150 μg/L were “iodine suitable areas” and greater than 150 μg/L were high iodine areas.Results The research was carried out in 14 cities,105 counties,and 1337 towns.We collected 65 716 water samples.Sample recovery efficiency reached 99.8%.The median of water iodine was 5.57 μg/L.In the 1337 towns surveyed,there were 82.05%(1097/1337) of the township with water iodine median < 10 μg/L,17.43%(233/1337) between 10 - 150 μg/L,and 0.52%(7/1337) > 150 μg/L.Conclusions In Shandong province,the water “iodine suitable” regions are distributed scattered with considerable proportion.In iodine-deficient areas,there are areas with high water iodine,and iodine-deficient regions should be redrawn.Emphasis should be put on iodine nutritional status of residents in “high iodine and iodine suitable” regions,and iodine supplementation should be carries out scientifically.