Objective To understand the iodine nutrition status of 8-10-year-old children and pregnant women in Shanting District,Zaozhuang City,Shandong Province,so as to provide basis for scientific and accurate policy of iodine deficiency disorders prevention in key population.Methods The urine samples of 8-10-year-old children and pregnant women and edible salt from their household in Shanting District from 2017 to 2021 were collected for laboratory detection,and the iodine nutrition status of children and pregnant women were analyzed according to the test results.Results The median urinary iodine of children for the five years was 186.1 μg/L,which belongs to the adequate range of iodine.There were differences in the average level and distribution of urinary iodine among children in different years and different cities and towns(P<0.001).There was no significant difference in the average level and distribution of urinary iodine among children of different genders(P>0.05).The median urinary iodine of pregnant women was 138.0 μg/L,which belongs to iodine deficiency.The average level and distribution of urinary iodine of pregnant women were different in different years(P<0.001),but there was no significant difference among different cities and towns and during different periods of pregnancy(P>0.05).From 2017 to 2021,the coverage rate of iodized salt in Shanting District was 99.2%,the overall consumption rate of qualified iodized salt was 94.8%,and the qualified rate of iodized salt was 95.5%.The coverage rate of iodized salt was different in different years(P=0.001).There were significant differences in the consumption rate of qualified iodized salt and the qualified rate of iodized salt in different years(P<0.001).Conclusion From 2017 to 2021,the iodine nutrition status of children aged 8-10 years in Shanting District was optimal,and the iodine nutrition status of pregnant women was deficient.Overal,the coverage rate of iodized salt in Shanting District was high.
Iodine nutritional statusUrinary iodineIodized salt