A follow up study on iodine nutrition and goiter rate of residents in excessive iodine intaking areas after ceasing supplementation of iodized salt in Dezhou City Shandong Province in 2013 -2014

• DOI: 10.3760/cma.j.issn.2095-4255.2015.11.010
• Publication Date: 2015-11-20
• Authors: Jumei Huang; Yuan Liu; Xiaoming Wang; Wen Jiang; Xin Wang; Fang Yang; Ruijuan Guo
• Keywords: Iodised salt

Objective To investigate the status of iodine content and goiter rate residents in excessive intaking areas Dezhou Shandong Province after ceasing supplementation iodized salt.

Methods In ten counties (cities, districts) from 2013 to 2014, 300 were selected each county (city, district) examine their household salt level. Five chosen as monitoring sites every year, which divided two groups according water levels (150 -300 > μg/L). One town that met requirement group was a test site, one hundred children aged 8 -10 (50 male 50 female) site measure If confirmed non-iodized salt, samples urine collected. Water urinary contents measured by arsenic cerium catalytic spectrophotometry (WS/T 107-2006); thyroid volume B ultrasound.

Results In 96.1% (2 882/2 999) 92.7% 781/3 000); 3.2% (16/506) 24.7% (129/523) City. Totally 1 052 drinking measured, median level 221.8 μg/L (0.5 -1 073.6 035 405.9 (19.3 -2 464.1 In (water 150-300 μg/L, respectively), 11.6% (59/508) 16.5% (86/521), difference between them statistically significant (χ2 = 4.86, P < 0.05). Urinary proportional (r 0.475, 0.01). The children' s children's had U curve relationship with rate.

Conclusions The stopping supply is well implemented. Some have improvement. However, harmful effects are still there some areas. There an U-curve rate. At same time, we should pay attention deficiency might be caused changing content.

Key words: Iodine; Water; Urine; Thyroid