Investigation of Iodine Deficiency and Analysis on the Present Situation of Iodine Supplementation in Rizhao City

[Objective]To offer the basic data and scientific foundation on control iodine deficiency disorders by investigating residential nutrition level of iodine in Rizhao city.[Methods]Investigation of iodine in drinking water iodine in urine of children aged 8~10 years iodine in urine of the patients with thyroid diseases/status of edible iodized salt was conducted in Rizhao city.[Results]The median of iodine in drinking water in Rizhao city is 4.1 μg/L;the median of iodine in urine of children aged 8~10 years old is 266.1 μg/L;the median of iodine in urine of the patients with thyroid diseases is slightly higher than that in the control group;indexes of household iodine salt reach up the national standard of eliminating iodine deficiency disorders.[Conclusion]Rizhao city belongs to iodine deficiency area,residential nutrition level of iodine reaches up sufficient and slightly high state after implementation program of iodine supplementation.