Department of Public Health, Ghent University, De Pintelaan 185, Ghent, Belgium.
Eur J Clin Nutr. 2012 Jul;66(7):806-12. doi: 10.1038/ejcn.2012.16. Epub 2012 Feb 22.
BACKGROUND/OBJECTIVES: In the absence of biochemical data on iron status in preschoolers, data on the adequacy of iron intake may be used to assess the possible risk of iron deficiency in this population group. Therefore, this study aims to investigate iron intake and its food sources in Flemish preschoolers.
SUBJECTS/METHODS: A total of 661 Flemish preschoolers 2.5-6.5 years old were recruited via a random cluster sampling design, using schools as primary sampling units. Three-day estimated diet records were used to assess dietary intakes. The contribution to iron intake (haem and non-haem) of 57 food groups was computed by summing the amount provided by the food group for all individuals divided by the total intake for all individuals.
Mean total iron intake (s.d.) was 7.4 (±2.3) and 6.7 (±2.8) mg/day for boys and girls, respectively. In all 65% of the children <4 years old and 45% of those 4-6.5 years old presented adequate iron intakes. The food groups with the highest mean proportional contribution to total iron intake were bread, meat and meat products, breakfast cereals and sweet snacks (in that order). Children from small families whose mother had a low educational level had higher iron intakes.
Iron intakes were similar for boys and girls and almost half of the Flemish preschoolers do not comply with the dietary iron recommendations.
背景/目的:在缺乏学龄前儿童铁状况生化数据的情况下,可以利用铁摄入量充足的数据来评估该人群缺铁的潜在风险。因此,本研究旨在调查佛兰德学龄前儿童的铁摄入量及其食物来源。
受试者/方法:采用随机聚类抽样设计,以学校为初级抽样单位,共招募了 661 名 2.5-6.5 岁的佛兰德学龄前儿童。使用三天的估计饮食记录来评估膳食摄入量。通过将食物组为所有个体提供的量相加,再除以所有个体的总摄入量,计算出 57 种食物组对铁摄入(血红素和非血红素)的贡献。
男孩和女孩的平均总铁摄入量(标准差)分别为 7.4(±2.3)和 6.7(±2.8)mg/天。所有 65%的<4 岁儿童和 45%的 4-6.5 岁儿童的铁摄入量充足。对总铁摄入量的平均比例贡献最高的食物组依次为面包、肉类和肉类产品、早餐谷物和甜零食。来自小家庭且母亲教育程度较低的儿童铁摄入量较高。
男孩和女孩的铁摄入量相似,近一半的佛兰德学龄前儿童不符合膳食铁推荐量。