Objective To understand the monitoring of iodine deficiency disorders in children aged 8 to 10 years and pregnant women in Golog Prefecture,Qinghai Province,from 2020 to 2022.Methods From 2020 to 2022,in 6 counties under the jurisdiction of Goluo Prefecture,Qinghai Province,each county(district)was divided into 5 sampling areas(east,west,south,north and center),and 1 township(street)was sampled from each area,and 1 elementary school was sampled from each township(street),and 40 children(half male and female)aged 8 to 10 years old were sampled from each elementary school,and the ultrasound method was used to check the children's thyroid volume,and the children's urine samples and salt samples from their families were collected to determine the salt iodine and iodine content,and 20 pregnant women(including pregnant women)were selected in each area to determine the salt iodine content.At the same time,20 pregnant women(including early,middle and late pregnancy)were selected from each area,and salt and urine samples were collected from their homes to determine the salt iodine and urine iodine content of the pregnant women.The salt iodine was determined by direct titration method,and the urine iodine was determined by ammonium persulfate digestion-cerium arsenate catalyzed spectrophotometric method.Results The monitoring results showed that from 2020 to 2022,the mean salt iodine was 27.74 mg/kg,the median salt iodine was 27.49 mg/kg,the coverage rate of iodized salt was 99.74％,and the consumption rate of qualified iodized salt was 96.51％.The median urinary iodine in children aged 8 to 10 years old was 210.00,180.50 and 245.10 μg/L,and the distribution of urinary iodine frequency was between 100％-200％,accounting for 35.71％respectively.The percentages were 35.71％,54.24％and 57.42％respectively.In 2020,2021 and 2022,children's median urinary iodine differences were statistically significant(P＜0.05),and the differences were statistically significant when comparing between groups.A total of 1 789 urine samples of pregnant women were collected and tested,and the median urinary iodine was 185.00 μg/L.The three-year median urinary iodine was 203.00,170.85 and 189.40 μg/L respectively,of which the median frequency distribution of urinary iodine was between 150 and 250 μg/L,accounted for 35.17％,43.20％and 49.08％respectively.The differences in median urinary iodine among pregnant women in 2020,2021 and 2022 were statistically significant,and the differences between groups were statistically significant,and comparison between groups showed that the differences were statistically significant(P＜0.05).Conclusion From 2020 to 2022,children aged 8 to 10 years and pregnant women in Golog Tibetan Autonomous Prefecture were at the appropriate level of iodine,and the results of iodine deficiency disorders prevention and treatment were still consolidated continuously.
GuoLuo PrefectureIodine deficiency disordersChildrenPregnant women
NETL
NSTL
万方数据
