Iodine nutritional status in high-risk areas of iodine deficiency disorders in Tianjin
10.3760/cma.j.issn.2095-4255.2014.02.020
- VernacularTitle:天津市碘缺乏病高危地区碘营养状况调查
- Author:
Zhonghui LIU
;
Shuqing HAN
;
Yang WANG
;
Guomin LIU
;
Mingsheng LIU
;
Changchun HOU
- Publication Type:Journal Article
- Keywords:
Iodine;
Deficiency diseases;
Goiter,endemic;
Urine;
Salts
- From:
Chinese Journal of Endemiology
2014;33(2):191-194
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the nutritional status of children and women of childbearing age in high-risk areas of iodine deficiency disorders in Tianjin in 2008-2010 and to provide a scientific basis for iodine supplementation.Methods Hangu District was selected as survey point from 2008 to 2010,Dagang District and Jingan County were increased in 2010.Hangu District was divided into five areas,one township(town) that was not high iodine was selected from each area,four administrative villages were selected from each township(town),and 15 households were selected from each administrative village.Three township(town) were selected from Dagang and Jingan County,respectively.Two administrative villages were selected from each township(town),and 20 households were selected from each administrative village.Iodine level of salt samples from each household was determined.In 2009,one primary school was selected from each survey township(town),thyroid volume of 40 8-10-year-old students was examined,and urine iodine of 20 students was tested.In 2010,three township(town) were selected from each survey point,two primary school were selected from each survey township(town),40 8-l0-year-old students were selected from each primary school,urine iodine and thyroid volume of the students were determined.150,50 and 60 women of childbearing age from Hangu District were selected from 2008 to 2010,and 60 were selected from Dagang District and Jingan County,respectively.Urine iodine of the women was tested.Iodine content of salt was tested by a semi-quantitative test kit; diagnosis of endemic goiter was based on the Diagnostic Criteria of Endemic Goiter (WS 276-2007); urinary iodine test was based on the Arsenic Cerium Catalytic Spectrophotometry (WS/T 107-2006).Results Coverage rates of iodized salt in Hangu District in the 3 years were 65.0％ (195/300),70.3％ (211/300) and 90.8％ (274/300),respectively.Coverage rates of iodized salt in Dagang District and Jinghai County were 40.0％(48/120) and 38.3％(46/120).In 2009,the median urinary iodine of children aged 8-10 in Hangu District was 205.4 μg/L and in 2010,the medians urinary iodine of children aged 8-10 of the three survey point were 193.0,293.1 and 216.8 μg/L.Goiter rates of children aged 8-10 in Hangu District were 4.24％(9/212) and 3.59％ (9/251),and in Dagang District and Jinghai County were 3.60％ (9/250) and 5.44％(13/239).The medians urinary iodine in women of childbearing age in Hangu District in the 3 years were 134.9,196.1 and 229.5 μg/L,respectively.The medians urinary iodine in women of childbearing age in Dagang District and Jinghai County were 316.9 and 190.9 μg/L.Conclusions The nutritional status of high-risk areas of iodine deficiency disorders in Tianjin are better than the national limit of enhanced iodine requirements.Due to higher water iodine in the same areas,some people are iodine excess,to which we should pay more attention.
