云南少数民族地区孕产妇碘负荷与相关因素分析

Analysis of iodine load of pregnant women and its related factors in minority areas of Yunnan

目的了解大理市2016-2018年20~35岁孕产妇碘营养水平变化,为大理市碘缺乏病的防治和消除提供科学依据。方法采用分层随机抽样方法抽取2016-2018年大理市常住人口20~35岁孕产妇,采用过硫酸铵消化砷铈催化分光光度法检测中段尿样中碘含量。结果2016-2018年共采集孕产妇中段尿样1950份,各年尿碘中位数分别为167.87μg/L、165.07μg/L、154.45μg/L,总体尿碘中位数为165.07μg/L,处于碘适宜水平。结论大理市20~35岁孕产妇尿碘水平基本达到国家碘缺乏病防治和消除标准,但仍存在碘摄入不足或过多的情况。相关部门需继续加强大理市20~35岁孕产妇碘缺乏病防治的监测和健康教育宣传,保证碘的合理摄入及提高广大孕产妇对碘缺乏病的认知和重视,以保证孕产妇人群的合理碘营养。

Objective To get an insight into the changes in iodine nutrition levels of pregnant women aged 20~35 years in Dali City from 2016 to 2018,and to provide a scientific basis for the prevention and elimination of iodine deficiency disorders in Dali City.Methods The stratified random sampling method was used to extract the pregnant women aged 20~35 years old from permanent residents of Dali City from 2016 to 2018.The content of iodine in the middle urine samples was determined by ammonium persulfate digestion-arsenic cerium catalysis spectrophotometry.Results From 2016 to 2018,a total of 1950 middle urine samples were collected from pregnant women.The median urinary iodine levels of each year were 167.87μg/L,165.07μg/L and 154.45μg/L,respectively.The overall median urinary iodine level was 165.07μg/L,which was in the appropriate level of iodine.Conclusion The urinary iodine levels of pregnant women aged 20~35 years old in Dali City have basically reached the national standard for the prevention,treatment and elimination of iodine deficiency disorders,but there are still situations of insufficient or excessive iodine intake.Relevant departments should continue to strengthen the monitoring and health education and publicity of iodine deficiency disorders prevention and treatment for pregnant women aged 20 to 35 years old in Dali City,ensure the reasonable intake of iodine and improve the awareness and attention of the majority of pregnant women on iodine deficiency disorders,so as to ensure the reasonable iodine nutrition of pregnant women.