Results analysis of iodine deficiency disorders of Wancheng District in 2011

Objective To know the iodine deficiency disorders status and diseases fluctuation,to evaluate the effects of iodine prevention of salt addition in the whole district. To provide scientific evidences for sustainable eliminating iodine deficiency disorders claimed by 12th Five-Year Plan. Methods In November-December of 2011,the stratified random sampling method was used to collect samples. First,five towns in the region were randomly selected; then,a primary school was randomly selected from each town. The goiter rate in this survey was investigated among the 8-10 year-old children. The iodized salt usage was monitored for the residents; besides,the health education survey and urinary iodine monitoring were carried out in 8-10 years old children,lactating women and pregnant women. Results The goiter rate of 8-10 years old children was 3.5%; the rate of talent above average was 93%; the middle value of their talent was 105.0. The pass rate for the iodine salt was 98%; the median of the iodine concentration in water was 4.4 μg/L; the median for children,pregnant women and lactating women was 194.6 μg/L,235.8 μg/L,156.0 μg/L respectively. The knowledge awareness of iodine deficiency disease among students and housewives was 96.4%,88.0% respectively. The test results presented significant difference(χ2=22.4,P0.01). Conclusion The amount of iodine existing in the environment of Wancheng district is generally deficient; however,the nutrition of iodine for residents is enough by the implementation of comprehensive prevention and control measures of the salt iodization. The pass rate of iodine salt and the goiter rate meet the requirement of standard. The goal of eliminating the sustainable iodine deficiency disorders is achieved by this method.