【摘要】 [目的 ]　了解城区学龄前儿童中隐性缺铁的发生情况。 [方法 ]　每年 3月和 9月调查上海市城区 2个监测点 2～ 6岁儿童的Hb和FEP ,用FEP/Hb动态观察儿童铁营养状况。 [结果 ]　集体托幼儿童隐性缺铁检出率为 2 2 .9%～2 8.3 % ,各年龄组的检出率在膳食营养状况良好的情况下 ,差异无显著性 (P >0 .0 5 )。新入托 2岁儿童隐性缺铁率最高(46 .5 % ) ,但入托后半年降为 16 .8% (P <0 .0 1) ,而 4岁儿童隐性缺铁率最低 (11.7% ) ,入园后半年升高到 36 .4% ,入园后1年半降为 9.8%。 [结论 ]　铁缺乏的食疗防治虽已收到成效 ,但常规监测工作仍需不断改进。更多还原

【Abstract】 Objective] To study the status of latent iron deficiency (LID) in preschool children in urban area. [Methods] An investigation of iron nutrition status was made by dynamically observing FEP/Hb in children aged 2～6 years each year. [Results] The incidence of LID was 22.9%～28.3% in children in kindergarten. There was no significant difference among different groups. The incidence of LID was the highest (46.5%) in children of 2 years of age, who were the new comers, it decreased to 16.8% after 6 months (P<0.01). The incidence in new comers of 4 years of age was 11.7%, but it increased to 36.4% after 6 months and decreased to 9.8% after 18 months. [Conclusion] Achievements in the management of iron deficiency has been made, but there are much room for improvement in the future.更多还原