不同盐碘浓度对碘缺乏病重、轻病区儿童几项指标影响的探讨

Effect of different iodine content in salt on children in severe and mild areas of iodine deficiency in Guizhou,China

目的了解贵州省实行额外补碘后,历史上碘缺乏病重、轻病区儿童几项病情指标的消长情况。方法对补碘后20年的病情监测资料进行回顾性分析。结果补碘后,碘缺乏病重、轻病区儿童营养性缺碘得到完全纠正。重病区儿童甲肿率自90年代初开始回升,近几年一直维持在20%左右。轻病区儿童甲肿率自1995年以后随尿碘水平的逐年上升呈上升趋势。结论贵州碘缺乏病重、轻病区儿童甲肿率上升的原因应考虑缺碘以外的因素。推测在重病区外环境中可能存在另一致甲肿因素,而轻病区儿童甲肿率上升的原因,可能与碘盐含碘不均匀致使部分儿童日摄碘量较高,或现行的盐碘浓度不适宜轻病区人群食用有关。

Objective To understand the iodine deficiency status in severe and mild areas after salt iodization was initiated in Guizhou,China.Methods To anal yze the monitoring records of previous twenty years.Results Iodine deficiency wa s redressed in both severe and mild areas,where urinary iodine concentrations we re 271ìg/L(severe area in 1999)and 421ìg/L(mild area in 1999).But the total go iter rate has been going up in recent ten years.Conclusions Supposed there is an other reason to cause goiter in severe area of iodine deficiency.The reasons of goiter's going up in recent years in mild area might be due to uneven iodine con tents in salt ,or 50mg/kg iodized salt is not suitable to population in mild iod ine deficiency area.