Issues in dietary intake assessment of children and adolescents
Issues in dietary intake assessment of children and adolescents
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DOI：
10.1079/bjn20041169
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发表时间：
2004-10-01
影响因子：
3.6
通讯作者：
Wallace, JMW
中科院分区：
文献类型：
--
作者：
Livingstone, MBE;Robson, PJ;Wallace, JMW
食物习惯和饮食摄入量的研究面临着一些独特的受访者和观察者的考虑，在不同阶段，从幼儿到青春期后期。尽管如此，摄入量经常被报告为有效，对摄入量与健康之间联系的解释往往错误地基于有效性的假设。然而，对能量摄入数据的验证研究使人们普遍认识到，儿童和青少年的许多饮食数据容易报告错误，主要是由于报告不足。报告误差受体重状况的影响，在不同年龄组或不同饮食调查技术中不会系统发生。看来，现有的评估儿童膳食摄入量的方法充其量只能提供群体一级能量摄入量的无偏估计，而大多数青少年的食物摄入量数据在群体和个人两级都特别容易报告错误。此外，饮食评估中存在受试者特异性反应的证据挑战了重复测量饮食摄入量最终将获得有效数据的假设。在理解与这些年龄组的误报相关的变量、估计营养素摄入量的相关偏差以及解释不具代表性的饮食数据的最适当方式方面，只取得了有限的进展。在这些问题得到更好的理解之前，研究人员在评估所有这些数据时应该相当谨慎。
Studies of food habits and dietary intakes face a number of unique respondent and observer considerations at different stages from early childhood to late adolescence. Despite this, intakes have often been reported as if valid, and the interpretation of links between intake and health has been based, often erroneously, on the assumption of validity. However, validation studies of energy intake data have led to the widespread recognition that much of the dietary data on children and adolescents is prone to reporting error, mostly through under-reporting. Reporting error is influenced by body weight status and does not occur systematically across different age groups or different dietary survey techniques. It appears that the available methods for assessing the dietary intakes of children are, at best, able to provide unbiased estimates of energy intake only at the group level, while the food intake data of most adolescents are particularly prone to reporting error at both the group and the individual level. Moreover, evidence for the existence of subject-specific responding in dietary assessments challenges the assumption that repeated measurements of dietary intake will eventually obtain valid data. Only limited progress has been made in understanding the variables associated with misreporting in these age groups, the associated biases in estimating nutrient intakes and the most appropriate way to interpret unrepresentative dietary data. Until these issues are better understood, researchers should exercise considerable caution when evaluating all such data.