DU Dan, Li Su-Mei, Li Xiu-Wei, Wang Hai-Yan, Li Shu-Hua, Nima Cangjue, Danzeng Sangbu, Zhuang Guang-Xiu
National Reference Laboratory for Iodine Deficiency Disorders, Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2010 Aug;31(8):863-5.
To explore the status of iodine nutrition and iodine deficiency disorders in the pasturing areas and agricultural regions in Tibet.
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.
Water iodine content was less than 2 µg/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 (193.2 µg/L). However, the goiter rate of children and women in pasturing area was significantly lower than that in agricultural area.
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.
探讨西藏牧区和农区碘营养状况及碘缺乏病情况。
分别在拉萨市牧区当雄县和农区曲水县各选取30户家庭。采集饮用水和食用盐检测碘含量。在8至10岁儿童、育龄妇女和成年男性等各类人群中各随机抽取50名对象检测尿碘含量。其中随机抽取50名儿童和50名妇女触诊检查甲状腺肿大情况。
牧区和农区水碘含量均低于2μg/L。牧区家庭均未使用碘盐，而农区90%的人食用碘盐。牧区尿碘中位数为50.2μg/L，显著低于农区（193.2μg/L）。然而，牧区儿童和妇女的甲状腺肿大率显著低于农区。
虽然西藏牧区人群碘摄入量严重不足，但未出现碘缺乏病流行。这一现象值得研究者进一步调查。
