The reliability and relative validity of a diet index score for 4-11-year-old children derived from a parent-reported short food survey
The reliability and relative validity of a diet index score for 4-11-year-old children derived from a parent-reported short food survey
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DOI：
10.1017/s1368980013001778
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发表时间：
2014-07-01
影响因子：
3.2
通讯作者：
Golley, Rebecca K.
中科院分区：
文献类型：
--
作者：
Hendrie, Gilly A.;Smith, Elizabeth Viner;Golley, Rebecca K.
目的：为了评估的可靠性和相对有效性的饮食指数得分来自一个短的食物调查（SFS）。设计：38项SFS的目的是评估最近的饮食摄入量的4-11岁的儿童，使儿童和青少年的饮食指南指数的计算。可靠性评估的基础上，两个在线管理的SFS，相隔一周。通过比较来自SFS的摄入量与来自三个24小时回忆的平均值的摄入量来评估相对有效性。评估了类内相关性、Bland-Altman图和估计偏倚。Cohen's kappa系数用于确定两种方法之间的一致性水平。地点：澳大利亚的阿德莱德。受试者：63名父母报告了他们孩子的摄入量（平均年龄7.1（SD 2.1）岁）。可靠性的类内相关性范围从乳制品的0.43到饮料的0.94，总饮食指数评分为0.92（P均0.01）。有效性的类内相关性范围为0.04（肉类和替代品）至0.41-0.44（水果、饮料和额外食物），总饮食指数得分为0.44。SFS高估了平均饮食指数评分16%，并且在依从性水平之间偏倚一致。的百分比协议到三分位数的指数得分为84%之间的管理两个SFS，但只有43%时，比较SFS与平均的recalls.Conclusions：SFS可以提供一个一致的估计总体依从性的饮食指南为4-11岁的儿童，但高估了总的饮食指数得分16%，在所有级别的遵守。
Objective: To assess the reliability and relative validity of a diet index score derived from a Short Food Survey (SFS).Design: The thirty-eight-item SFS was designed to assess recent dietary intake of 4-11-year-olds to enable calculation of the Dietary Guideline Index for Children and Adolescents. Reliability was assessed based on two online administrations of the SFS, one week apart. Relative validity was assessed by comparing intakes derived from the SFS with those from the mean of three 24 h recalls. Intra-class correlations, Bland-Altman plots and estimated biases were assessed. Cohen's kappa coefficients were used to determine the level of agreement between the two methods.Setting: Adelaide, Australia.Subjects: Sixty-three parents reported on their children's intake (mean age 7.1 (SD 2.1) years).Results: The intra-class correlation for reliability ranged from 0.43 for dairy foods to 0.94 for beverages, and was 0.92 for total diet index score (all P, 0.01). The intra-class correlation for validity ranged from 0.04 for meat and alternatives to 0.41-0.44 for fruit, beverages and extra foods, and was 0.44 for the total diet index score. The SFS overestimated the mean diet index score by 16 %, and the bias was consistent across levels of compliance. The percentage agreement into tertiles of index scores was 84% between the administrations of the two SFS, but only 43% when comparing the SFS with the mean of the recalls.Conclusions: The SFS can provide a consistent estimate of overall compliance to dietary guidelines for children aged 4-11 years, but overestimated the total diet index score by 16% across all levels of compliance.