239例学前儿童发锌值下限与临床表现关系的观察探讨

Clinical observation of relationship between hair value of zinc low limit and clinical manifestation in 239 preschool children

目的:探讨该地区学龄前儿童发锌正常值下限以及其与临床表现的关系,为基层工作提供指导依据。方法:采用整群随机抽样的方法,比较两所幼儿园集体儿童与门诊缺锌症儿童的发锌值。结果:患儿组与对照组平均身高、平均体重、平均发锌值有显著性差异(P<0.01),患儿组各项临床表现前6位的排序为:反复呼吸道感染(87.45%)、厌食(80.75%)、毛发稀黄干枯(56.49%)、慢性腹泻(44.77%)、体重不足(39.33%)、异食癖(15.48%)。结论:发锌正常值下限为120ppm较为合理。儿童生长发育时期心、脑、肾、内分泌对锌的需求量相对较大,应早发现、早治疗,避免因锌缺乏而影响正常的发育。

Objective： To explore the relationship between hair value of zinc low limit and clinical manifestation in preschool children to provide proof for the job of basic level. Methods： The duster random sampling was used to compare the hair Zn value between children from two kindergartens and those with Zn deficiency from clinic. Results： There were significant differences in an average of height, weight, hair value of zinc （ P 〈 0. 01 ） between two groups. The frontal 6 figures were repetition respiratory infect （ 87.45% ）, anorexy （80.75%）, hair of thin yellow dry （56. 49% ）, chronic diarrhoen （44. 77% ）, insufficient of weight （39. 33% ） and allolriopagia （ 15. 48% ） . Conclusion： Number to normal low limit 120 ppm is reasonable. When children grow up during their development periods, their heart, brain, kidney, endocrine secretion need more zinc. Zn deficiency should be discovered and cured early to avoid influence normal development.