School of Public Health and Health Systems, University of Waterloo, Waterloo, ON, Canada.
Division of Cancer Prevention, National Cancer Institute, Bethesda, MD.
J Acad Nutr Diet. 2021 Nov;121(11):2233-2241.e1. doi: 10.1016/j.jand.2021.06.009. Epub 2021 Aug 4.
The construct and predictive validity of the Healthy Eating Index (HEI) have been demonstrated, but how error in reported dietary intake may affect scores is unclear.
These analyses examined concordance between HEI-2015 scores based on observed vs reported intake among adults.
Data were from two feeding studies (Food and Eating Assessment STudy, or FEAST, I and II) in which true intake was observed for three meals on 1 day. The following day, participants completed an unannounced 24-hour dietary recall.
PARTICIPANTS/SETTING: FEAST I (2012) included 81 men and women, aged 20 to 70 years, living in the Washington, DC, area. FEAST II (2016) included 302 women, aged 18 years or older, with low household incomes and living in the Washington, DC, area. In FEAST I, recalls were completed independently using the Automated Self-Administered 24-hour Dietary Assessment Tool (ASA24-2011) or interviewer-administered using the Automated Multiple-Pass Method. In FEAST II, recalls were completed using ASA24-2016, independently or in a small group setting with assistance.
HEI-2015 scores were calculated using the population ratio method.
T-tests determined whether differences between scores based on observed and reported intake were different from zero. FEAST I data were stratified by sex, and in FEAST II, analyses were repeated by education and body mass index (BMI).
Differences in total HEI-2015 scores between observed and reported intake ranged from -1.3 to 5.8 points among those completing ASA24 independently in both studies, compared with -2.5 points in the small group setting. For interviewer-administered recalls, the differences were -1.1 for men and 2.3 for women. In FEAST II, total HEI-2015 scores derived from observed intake were lower than scores derived from reported intake among those who had completed high school or less (-3.2, SE 1.1, P<0.01) and those with BMI ≥ 30 (-2.8, SE 1.1, P = 0.01).
HEI-2015 scores based on 24-hour dietary recall data are generally well estimated.
健康饮食指数（HEI）的结构和预测有效性已经得到证实，但报告的饮食摄入量中的误差如何影响评分尚不清楚。
这些分析检查了基于成年人观察到的摄入量和报告的摄入量的 HEI-2015 评分之间的一致性。
数据来自两项喂养研究（饮食评估研究，或 FEAST，I 和 II），其中在一天内观察了三顿饭的真实摄入量。第二天，参与者完成了一项未公布的 24 小时膳食回忆。
参与者/设置：FEAST I（2012 年）包括 81 名年龄在 20 至 70 岁之间的男性和女性，居住在华盛顿特区。FEAST II（2016 年）包括 302 名年龄在 18 岁或以上的女性，收入较低，居住在华盛顿特区。在 FEAST I 中，回忆是使用自动自我管理的 24 小时饮食评估工具（ASA24-2011）或使用自动多次通过方法的访谈者管理的独立完成的。在 FEAST II 中，回忆是使用 ASA24-2016 独立完成的，或在小团体环境中在帮助下完成的。
使用人群比方法计算 HEI-2015 评分。
t 检验确定基于观察到的和报告的摄入量的评分与零的差异是否不同。在 FEAST I 中，数据按性别分层，在 FEAST II 中，分析按教育程度和体重指数（BMI）重复进行。
在两项研究中，独立完成 ASA24 的参与者中，观察到的摄入量与报告的摄入量之间的总 HEI-2015 评分差异范围为-1.3 至 5.8 分，而在小团体环境中为-2.5 分。对于访谈者管理的回忆，男性的差异为-1.1，女性为 2.3。在 FEAST II 中，从观察到的摄入量得出的总 HEI-2015 评分低于从报告的摄入量得出的评分，在完成高中或以下学历的人（-3.2，SE 1.1，P<0.01）和 BMI≥30 的人（-2.8，SE 1.1，P=0.01）。
基于 24 小时膳食回忆数据的 HEI-2015 评分通常得到很好的估计。
