压力介导反射光谱法评估学龄前儿童水果和蔬菜摄入量的效标关联效度研究。

Evidence for Criterion-Related Validity of Pressure-Mediated Reflection Spectroscopy for Approximating Fruit and Vegetable Consumption among Preschool Children.

机构信息

Department of Child, Youth and Family Studies, University of Nebraska-Lincoln, Lincoln, NE, United States.

出版信息

J Nutr. 2024 Jan;154(1):261-270. doi: 10.1016/j.tjnut.2023.11.022. Epub 2023 Nov 25.

DOI:10.1016/j.tjnut.2023.11.022

PMID:38008362

Abstract

BACKGROUND

Skin carotenoids are a valid biomarker for approximating fruit and vegetable consumption (FVC). Veggie Meter® (VM®, Longevity Link Corp.) is a pressure-mediated reflection spectroscopy (RS)-based device that allows for noninvasive and rapid assessment of skin-carotenoid score (SCS) in adults and children. Although VM® is established as a valid tool to measure FVC in adults, there is limited research supporting the validity evidence of the VM® to approximate FVC among preschool children.

OBJECTIVE

The current study aims to assess evidence supporting the criterion-related validity of RS-based SCS for approximating FVC among preschool children (3-5-y old).

METHODS

We collected cross-sectional data from typically developing preschool children (n = 136) attending the Child and Adult Care Food Program-participating family child care home settings (FCCHs) (n = 46) in Nebraska. Research team members collected children's height and weight to calculate body mass index; and measured children's SCS using the VM®. Children's FVC in FCCHs were collected using dietary observation. In addition, parents (n = 89) completed a shortened food frequency questionnaire to report children's FVC at home. Kendall's Tau (τ) correlation tests were conducted to measure the association between children's SCS with FVC in FCCHs and with parent-reported total fruit and vegetable (FV) frequency scores.

RESULTS

Children's SCS were significantly correlated with their mean FVC in FCCHs, τ = 0.14 (P = 0.02), total provitamin A carotenoids intake in FCCHs, τ = 0.19 (P < 0.001), and with parent-reported total FV frequency score, τ = 0.16 (P = 0.04).

CONCLUSION

The correlation coefficients in this study are comparable with results from a meta-analysis examining associations between FVC and SCS in 7-10-y-old children (r = 0.20). Thus, evidence suggests that RS offers a potentially valid, objective, and feasible method to assess preschool children's total FVC in multiple settings, especially in conjunction with other dietary assessment tools.

摘要

背景

皮肤类胡萝卜素是一种估算水果和蔬菜摄入量（FVC）的有效生物标志物。Veggie Meter®（VM®，长寿链接公司）是一种基于压力介导反射光谱（RS）的设备，可在成人和儿童中进行非侵入性和快速的皮肤类胡萝卜素评分（SCS）评估。尽管 VM®已被确立为一种测量成人 FVC 的有效工具，但在学龄前儿童中，VM®用于估算 FVC 的有效性证据有限。

目的

本研究旨在评估基于 RS 的 SCS 评估学龄前儿童（3-5 岁）FVC 的效标关联效度的证据。

方法

我们从内布拉斯加州参加儿童和成人关怀食品计划参与家庭儿童保育家庭（FCCH）的典型发展学龄前儿童（n=136）中收集了横断面数据（n=46）。研究团队成员收集了儿童的身高和体重来计算体重指数；并使用 VM®测量了儿童的 SCS。在 FCCH 中使用膳食观察法收集了儿童的 FVC。此外，家长（n=89）完成了简短的食物频率问卷，以报告家中儿童的 FVC。进行 Kendall's Tau（τ）相关检验以测量儿童 SCS 与 FCCH 中 FVC 之间以及与父母报告的总水果和蔬菜（FV）频率得分之间的关联。