【摘要】 目的：了解学龄前儿童发锌、发钙水平及其相关影响因素。方法：采用原子吸收光谱法测定学龄前儿童发锌、发钙含量，采用称重法进行为期5天膳食调查。结果：发锌、发钙含量分别为121．8±49．50μg／和792．25±432．32μg／g；锌、钙不足率分别为37．4％和39．2％；发锌含量正常与不足两者间发钙水平（846．81±481．02μg／g、683．06±240．32μg／g）及钙不足率（31．3％和52．5％）均有显著性差异。锌、钙的每人日膳食摄入量分别占RDA的95．33％、42．35％；植物性食物来源分别为69．44％、67．06％。结论：锌、钙的食物来源不合理，锌可能与钙的代谢有关，在补钙时应注意同时补锌。更多还原

【Abstract】 Objective: In order to study hair zinc and hair calcium contents of preschool childrin and related factors. Methods: Hair zinc and calcium conents of 107 children 4 ~ 5 years old were determined by atomabsorption spectrum method, a 5 day dietaIy survey was conductal by weighting method. Results: Hair zinc and hair calcium contents were 121. 18 ± 49. 5μg/g and 792. 25 ± 437. 32μg/g respectively, 37. 4% and 39. 2% of preschool children were low in hair zinc and hair calcium contents.There were significant differences in hair calcium content(846. 81 ± 481. 02μg/g, 683 .06 ± 240. 32μg/g) and in the pereentage of children whae hair calcium contents were low(31. 3%, 52. 5 % )between children with normal hair zinc content and children with lower hair zinc content. Theintakes of zinc and calcium accouned for 95. 53% and 42. 35% of their careponding RDAs,69 .44% and 67. 06% of zinc and calcium intakes came from plant foods. Conclusions: Zinc and calcium sources are unreasonable in diets of the preschool children. Zinc might be Miated with calcium in metahalism, thus, when calcium is suplemental,more attention should be paid to zinc supplementation.更多还原