深圳市南山区外来工子女尿碘水平调查

Urinary iodine levels among migrant workers'children in Nanshan district of Shenzhen city

目的了解深圳市南山区外来工子女碘营养状况及尿碘水平,为当地政府制定防治策略提供科学依据。方法通过抽样选取475名5岁以下的外来工子女,收集日间随机1次性尿样,应用砷铈催化分光光度法,进行尿碘浓度的检测分析。结果 475名外来工子女尿碘中位数为209.1μg/L,尿碘值<100μg/L的占20.85%,其中<50μg/L的占6.74%;尿碘值>100μg/L的占79.16%,>300μg/L的占26.11%。男童尿碘中位数219.7μg/L,女童尿碘中位数192.6μg/L,不同性别组尿碘水平差异无显著性(P>0.05);0～1岁婴儿组、1～3岁幼儿组与3～5岁学龄前组尿碘中位数分别为283.7、203.4和205.0μg/L,不同年龄组之间尿碘水平差异有显著性(P<0.01),但1～3岁幼儿组与3～5岁学龄前组尿碘水平差异没有显著性(P>0.05)。结论现阶段深圳市南山区外来工子女碘的摄入量可以满足机体生理需要,不存在缺碘,但碘摄入量有偏高的趋势,应加强宣传教育,普及补碘知识,把碘盐的摄入量控制在合理的范围内。

Objective To understand the iodine nutritional situation and the urinary iodine levels among migrant workers＇children in Nanshan district of Shenzhen city,and to provide a basis for the formulation of prevention and treatment measures.Methods 475 children under 5 years old were selected by sampling.Urinary iodine was assessed using one of the day-time urinary samples.And urinary iodine level was determined by spectrophotometry with redox catalytic reaction of As-Ce.Results The median of urinary iodine level among 475 migrant workers＇children was 209.10 μg/L.The percentage of those children the urinary iodine level less than 100.0 μg/L was 20.85%,and less than 50.0 μg/L was 6.74%.The urinary iodine level more than 100.0 μg/L was 79.16%,and more than 300.0 μg/L was 26.11%.The median of urinary iodine level of boys was 219.74 μg/L,and the girls was 192.61 μg/L,there was no significant difference（P0.05）.The median of urinary iodine level of those children,aged from 0 to 1 year,1 to 3 years and 3 to 5 years,was 283.7 μg/L,203.4 μg/L and 205.0 μg/L respectively.There was significant difference（P0.01） in vary aged group,but there was no significant difference（P0.05） between 1 to 3 years old children group and 3 to 5 years old preschool group.Conclusions The iodine intake of migrant workers＇children can meet the physiological demands in Nanshan district of Shenzhen city at this stage,there was no iodine deficiency.But the iodine intake was on the high side,therefore we should strengthen propaganda and education to universalize the knowledge of iodine supplementation and to control the intake of iodized salt at a reasonable range.