目的 了解安徽省定远县8～10岁儿童和孕妇人群尿碘监测结果,为制定改善碘营养措施提供科学依据。方法 2021—2023年,每年在定远县东、西、南、北、中5个地理方位各随机抽取1个乡(镇、街道),每个乡(镇、街道)随机抽取40名8～10岁儿童和20名孕妇作为调查对象。采集调查对象的尿样检测尿碘含量,计算尿碘中位数,评价碘营养状况。结果 定远县2021—2023年共调查8～10岁儿童600人,孕妇300人。600名8～10岁儿童尿碘中位数为297.27 μg/L,其中<100 μg/L 28人,占4.67%;100～199 μg/L 98人,占16.33%;200～299 μg/L 182人,占30.33%;≥300 μg/L 292人,占48.67%。2021—2023年定远县8～10岁儿童尿碘中位数分别为300.44、258.60和346.32 μg/L,差异有统计学意义(H=48.269,P<0.001)。300名孕妇尿碘中位数为223.13 μg/L,其中<150 μg/L 74人,占24.67%;150～249 μg/L 104人,占34.67%;250～499 μg/L 114人,占38.00%;≥500 μg/L 8人,占2.67%。定远县2021—2023年孕妇尿碘中位数分别为 215.03、167.22和284.02 μg/L,差异有统计学意义(H=37.407,P<0.001)。结论 定远县8～10岁儿童和孕妇均存在碘缺乏及碘超过适宜量的风险。

Objective To understand the monitoring results of urinary iodine in children aged 8-10 and pregnant women in Dingyuan County,Anhui Province,and provide scientific basis for formulating measures to improve iodine nutrition. Methods From 2021 to 2023,one township (town,street) randomly selected from each of the five geographical directions of east,west,south,north,and middle in Dingyuan County each year.40 children aged 8-10 and 20 pregnant women were randomly selected from each township (town,street) as survey subjects.Urine samples were collected from survey subjects to detect urinary iodine content,the median urinary iodine was calculated,and iodine nutrition status was evaluated. Results A total of 600 children aged 8-10 and 300 pregnant women were surveyed in Dingyuan County from 2021 to 2023.The median urinary iodine level among 600 children aged 8-10 years old was 297.27 μg/L,of which 28 (4.67%) were below 100 μg/L,98 (16.33%) were between 100-199 μg/L,182 (30.33%) were between 200-299 μg/L,and 292 (48.67%) were above 300 μg/L.The median urinary iodine levels for children aged 8-10 in Dingyuan County from 2021 to 2023 were 300.44,258.60,and 346.32 μg/L,respectively,with statistically significant differences (H=48.269,P<0.001).The median urinary iodine level among 300 pregnant women was 223.13 μg/L,of which 74 (24.67%) were below 150 μg/L,104 (34.67%) were between 150-249 μg/L,114 (38.00%) were between 250-499 μg/L,and 8 (2.67%) were above 500 μg/L.The median urinary iodine levels of pregnant women in Dingyuan County from 2021 to 2023 were 215.03,167.22,and 284.02 μg/L,respectively,with statistically significant differences (H=37.407,P<0.001). Conclusion Children aged 8-10 and pregnant women in Dingyuan County are at risk of iodine deficiency and exceeding the appropriate amount of iodine.