Abstract：Objective To investigate the changes of iodine nutritional status among urban and rural residents in Hengyang City in recent years so as to provide a basis for continuously implementing salt iodization strategies and measures about preventing and controlling iodine deficiency disorders. Methods According to the sampling method from the National Iodine Deficiency Disorders Monitoring Program, the direct titration method was used to determine the iodine content in different salt samples collected from urban and rural residents in Hengyang City. The consumption rate of qualified iodized salt in different research subjects and the iodine content in different salt samples were analyzed. Results Among 17,911 salt samples detected during 2011-2015, there were 38 (0.21%) non-iodized salt samples with the iodine content <5 mg/kg, 487 (2.72%) unqualified iodized salt samples with the iodine content of 5-20 mg/kg and 43 (0.24%) unqualified iodized salt samples with the iodine content >39 mg/kg. There were statistically significant differences in the qualified rate of iodized salt among different years (χ2=78.393, P=0.000) as well as between rural and urban areas in Hengyang City (χ2=46.308, P=0.000). Conclusions The proportions of unqualified iodized salt and non-iodized salt are lower during the five-year period. Although the annual qualified levels of iodine concentration in salt in Hengyang City fluctuate slightly, but the dietary iodine intake of the residents is adequate and safe, and the qualified rate of iodized salt is higher in rural areas than in urban areas.
吴剑阁,李传华,黄钢桥,李芳,朱慧敏. 2011-2015年衡阳市城乡居民食用碘盐监测结果评价[J]. 实用预防医学, 2016, 23(8): 982-983.
WU Jian-ge, LI Chuan-hua, HUANG Gang-qiao, LI Fan, ZHU Hui-min. Evaluation on the surveillance results of iodized salt among urban and rural residents in Hengyang City, 2011-2015. , 2016, 23(8): 982-983.
2016, Vol. 23 
