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目的评价北京地区儿童碘营养状况。方法分别对城区、郊区、郊县各两个的10个居民点1035名0～12岁健康儿童取头发标本,采用紫外/可见分光光度计分析头发碘含量;结果发碘均值0.7845±0.4821μg·g~(-1),高碘率36.1％,低碘率13.1％,正常50.7％:城区、郊区、郊县儿童高碘率分别为49.9％、30.2％27.9％;0～3、3～6岁、6～12岁组儿童高碘率分别为52.2％、41.5％、23.7％;男女之间碘值无差别。结论各居住区、年龄组、不同性别儿童碘含量普遍增高(P<0.05或P<0.001),北京地区儿童日常食用加碘盐已能满足生理需要,加用含碘食品或药品可导致碘过量,对儿童健康构成潜在危害。
Objective To evaluate the iodine nutrition status of children in Beijing. Methods Hair samples were collected from 1035 healthy children aged from 0 to 12 in 10 settlements in urban, suburban and suburban counties respectively. The hair iodine content was analyzed by UV / Vis spectrophotometer. The average iodine value was 0.7845 ± 0.4821μg · iodine rate was 36.1%, low iodine rate was 13.1% and normal was 50.7%. The iodine rates of children in urban, suburban and suburban counties were 49.9%, 30.2% and 27.9%, respectively; Children aged 6-12 years old had high iodine rates of 52.2%, 41.5% and 23.7%, respectively; there was no difference in iodine value between men and women. Conclusion The iodine content of children in all residential areas, age groups and sexes were generally higher (P <0.05 or P <0.001). The daily consumption of iodized salt in Beijing children was able to meet the physiological needs. Adding iodine-containing foods or drugs could lead to excessive iodine , Posing a potential hazard to children’s health.