Survey results of iodine nutrition level in 4 counties of Zunyi City, 2014 / 中华地方病学杂志

ABSTRACT

Objective To understand the city residents' iodine nutrition level after implementation of a new iodine concentration standard.Methods Using random sampling,four counties were selected to monitor iodine nutrition level;in every county 50 children aged 8-l0 and 20 pregnant women were selected as monitoring subjects;B ultrasound scan was used to detect goiter and children urinary iodine and salt iodine levels were tested;urinary iodine concentration of pregnant women and nursing mothers was determined.Results Thyroid of 200 children aged 8-10 years were detected,the enlargement rate of thyroid gland was 1％ (2/200);200 salt samples were tested,qualified iodized salt consumption rate was 96％ (192/200);200 copies of children urine samples were tested,the median of urinary iodine was 229.3 μg/L;80 copies urine samples of pregnant women were tested,urinary iodine median was 183.7 μg/L.Conclusions After implementation of a new standard of salt iodine content,the iodine nutrition level of children in the four counties (districts) of Zunyi is still high,but the level of iodine nutrition of pregnant women appears imbalanced.We suggest to supply different concentrations of iodized salt for different groups of people,to strengthen the monitoring,and to prevent iodine deficiency disorders.