Study on the iodine nutrition and iodine deficiency disorders status in pasturing areas of Tibet-a non-epidemic area of iodine deficiency disorders in serious iodine deficiency district
10.3760/cma.j.issn.0254-6450.2010.08.006
- VernacularTitle:严重缺碘地区无碘缺乏病流行:西藏牧区人群碘营养及病情状况调查
- Author:
Dan DU
1
;
Su-Mei LI
;
Xiu-Wei LI
;
Hai-Yan WANG
;
Shu-Hua LI
;
Cangjue NIMA
;
Sangbu DANZENG
;
Guang-Xiu ZHUANG
Author Information
1. 中国疾病预防控制中心传染病预防控制所
- Keywords:
Iodine deficiency disorders;
Iodine nutrition;
Water iodine;
Pasturing areas
- From:
Chinese Journal of Epidemiology
2010;31(8):863-865
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the status of iodine nutrition and iodine deficiency disorders in the pasturing areas and agricultural regions in Tibet. Methods 30 families were selected respectively in pastoral Dangxiong county and agricultural Qushui county of Lasa. Drinking water and edible salt were collected for testing the iodine contents. In each type of the following populations including children aged 8-10, women of child-bearing age and male adults, 50 subjects were randomly sampled to examine their urinary iodine contents. Among them, 50 children and 50 women were randomly selected for goiter examination by palpation. Results Water iodine content was less than 2μg/L, both in pasturing area and in agricultural areas. There was no iodized salt used in the families of pasturing areas, while 90% people consumed iodized salt in agricultural areas. The median of urinary iodine in pasturing area was 50.2 μg/L, significantly lower than that of agricultural area (193.2μg/L). However, the goiter rate of children and women in pasturing area was significantly lower than that in agricultural area. Conclusion Although iodine intake of populations in pasturing area of Tibet was severely deficient, there was no epidemic of Iodine Deficiency Disorders. This phenomenon noticed by the researchers deserved further investigation.
