Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics

Background: Programs, such as Medicaid, the Supplemental Nutrition Assistance Program, and the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), provide access to vital medical and nutrition services. Few studies have investigated whether demographic, social, and economi...

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Main Authors: Lauren E Au, Charles D Arnold, Christabel Domfe, Lorrene D Ritchie, Shannon E Whaley, Marianne Bitler, Edward A Frongillo
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Current Developments in Nutrition
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Online Access:http://www.sciencedirect.com/science/article/pii/S247529912502966X
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author Lauren E Au
Charles D Arnold
Christabel Domfe
Lorrene D Ritchie
Shannon E Whaley
Marianne Bitler
Edward A Frongillo
author_facet Lauren E Au
Charles D Arnold
Christabel Domfe
Lorrene D Ritchie
Shannon E Whaley
Marianne Bitler
Edward A Frongillo
author_sort Lauren E Au
collection DOAJ
description Background: Programs, such as Medicaid, the Supplemental Nutrition Assistance Program, and the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), provide access to vital medical and nutrition services. Few studies have investigated whether demographic, social, and economic determinants of health, including length of time spent on these programs, are associated with diet quality and weight status in early childhood. Objectives: Classification and regression tree analysis, a machine learning method, was used to determine health predictors to identify patterns of children with higher compared with lower diet quality and higher compared with lower weight status. Methods: Using the WIC infant and toddler feeding practices study-2 (unweighted N = 3051; weighted N = 413,211), classification and regression tree identified the sequence of binary splits that best differentiated the sample on Healthy Eating Index-2020 (HEI-2020; range 0–100) and HEI-2020 subscales (adequacy and moderation), and body mass index (BMI in kg/m2) z-score at 2–5 y. Predictors, including maternal BMI, child birthweight, sociodemographics, and length of time spent on safety net programs, were considered. Results: Higher HEI-2020 scores were primarily predicted by race and ethnicity (e.g., Hispanic, Spanish, or non-Hispanic White), and longer WIC and shorter Supplemental Nutrition Assistance Program duration. In examining HEI-2020 subscales, higher HEI adequacy was primarily predicted by higher education, older maternal age, longer WIC duration, and race and ethnicity. Higher HEI moderation was primarily predicted by race and ethnicity and longer WIC duration. Higher BMI z-score was primarily predicted by higher birth weight. Conclusions: Child diet quality and weight status were associated with different social determinants of health, which included maternal weight status, race and ethnicity, and food assistance program participation, particularly WIC.
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spelling doaj-art-a31041d41ba14c028b00e2104733cc212025-08-24T05:13:57ZengElsevierCurrent Developments in Nutrition2475-29912025-08-019810750510.1016/j.cdnut.2025.107505Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and DemographicsLauren E Au0Charles D Arnold1Christabel Domfe2Lorrene D Ritchie3Shannon E Whaley4Marianne Bitler5Edward A Frongillo6Department of Nutrition, University of California, Davis, Davis, CA, United States; Corresponding author.Department of Nutrition, University of California, Davis, Davis, CA, United StatesDepartment of Nutrition, University of California, Davis, Davis, CA, United StatesDivision of Agriculture and Natural Resources, Nutrition Policy Institute, University of California, Oakland, CA, United StatesPublic Health Foundation Enterprises Women, Infants, and Children, Irwindale, CA, United StatesDepartment of Economics, University of California, Davis, Davis, CA, United States; National Bureau of Economic ResearchDepartment of Health Promotion, Education, and Behavior, University of South Carolina, Columbia, SC, United StatesBackground: Programs, such as Medicaid, the Supplemental Nutrition Assistance Program, and the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), provide access to vital medical and nutrition services. Few studies have investigated whether demographic, social, and economic determinants of health, including length of time spent on these programs, are associated with diet quality and weight status in early childhood. Objectives: Classification and regression tree analysis, a machine learning method, was used to determine health predictors to identify patterns of children with higher compared with lower diet quality and higher compared with lower weight status. Methods: Using the WIC infant and toddler feeding practices study-2 (unweighted N = 3051; weighted N = 413,211), classification and regression tree identified the sequence of binary splits that best differentiated the sample on Healthy Eating Index-2020 (HEI-2020; range 0–100) and HEI-2020 subscales (adequacy and moderation), and body mass index (BMI in kg/m2) z-score at 2–5 y. Predictors, including maternal BMI, child birthweight, sociodemographics, and length of time spent on safety net programs, were considered. Results: Higher HEI-2020 scores were primarily predicted by race and ethnicity (e.g., Hispanic, Spanish, or non-Hispanic White), and longer WIC and shorter Supplemental Nutrition Assistance Program duration. In examining HEI-2020 subscales, higher HEI adequacy was primarily predicted by higher education, older maternal age, longer WIC duration, and race and ethnicity. Higher HEI moderation was primarily predicted by race and ethnicity and longer WIC duration. Higher BMI z-score was primarily predicted by higher birth weight. Conclusions: Child diet quality and weight status were associated with different social determinants of health, which included maternal weight status, race and ethnicity, and food assistance program participation, particularly WIC.http://www.sciencedirect.com/science/article/pii/S247529912502966XHEI-2020classification and regression treeBMIzdietchildrenWIC
spellingShingle Lauren E Au
Charles D Arnold
Christabel Domfe
Lorrene D Ritchie
Shannon E Whaley
Marianne Bitler
Edward A Frongillo
Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
Current Developments in Nutrition
HEI-2020
classification and regression tree
BMIz
diet
children
WIC
title Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
title_full Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
title_fullStr Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
title_full_unstemmed Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
title_short Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
title_sort diet quality and weight status are predicted by federal nutrition assistance program participation health and demographics
topic HEI-2020
classification and regression tree
BMIz
diet
children
WIC
url http://www.sciencedirect.com/science/article/pii/S247529912502966X
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