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Data analysis of investigation results on iodine deficiency disorders in Gansu Province in 2011 / 中国地方病学杂志
Chinese Journal of Endemiology ; (6): 288-292, 2013.
Article in Chinese | WPRIM | ID: wpr-642750
ABSTRACT
Objective To master the condition of iodine deficiency disorders (IDD),residents iodine nutritional status and implementation of prevention measures in Gansu Province and to provide a basis for developing control strategies.Methods Thirty primary schools were selected in Gansu Province utilizing cluster sampling methodology in 2011,In each selected school,40 children aged 8-10 were randomly selected for thyroid examination and urine samples were collected from 12 children,at the same time measuring the average daily salt intake of domestic residents by 3 days weighing method.On the spot random urine samples and salt samples were collected from a subset of children included in the study.Three towns near the selected school were selected randomly and random urine samples were collected from 5 pregnant and 5 lactating women in each selected town.One drinking water sample was collected for analysis from different sources in five directions(east,south,west,north and central)in each administrative village with the sampled schools.In areas with centralized water supply,two tap water samples were collected for analysis.Results The water iodine median of 83 water samples was 2.02 μg/L,the range was 0.20-36.92 μg/L,and iodine median of 1199 salt samples was 27.4 mg/kg,iodine level in 89.2% (74/83) of the water samples was lower than 10 μg/L.The iodized salt coverage rate was 98.0% (1175/1199),the qualified rate of iodized salt was 90.3% (1061/1175) and the consumption rate of qualified iodized salt was 88.5% (1061/1199).Total of 360 salt samples intake of households were collected,per capita daily salt was 8.5 g,and the range was 2.5-17.8 g.Total of 1200 children thyroid were checked,the thyroid goiter rate(TGR)of children was 2.8%(34/1200) by B-ultrasound and 3.5% (42/1200) by palpation.Total of 359,450 and 450 urine samples of childen aged 8-10,pregnant and lactating women,the urinary iodine median were 216.0,168.6,161.9 μg/L,respectively.Conclusions Great progress has been made in the prevention and control of IDD in Gansu Province.IDD has been controlled effectively and the urinary iodine medians are at optimal levels.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Endemiology Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Endemiology Year: 2013 Type: Article