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Examining Household Changes in Produce Purchases Among New Parents
Betsy Q Cliff1, Tarlise Townsend2, Julia A Wolfson3
1Department of Health Management and Policy, University of Michigan School of Public Health, Ann Arbor, MI.
Objective:
To measure whether parenthood is associated with changes in produce purchasing behavior, overall and stratified by income.
Design:
Retrospective examination of retail grocery purchases in the Nielsen Consumer Panel, a nationally representative sample of US households, 2007-2015.
Participants And Setting:
A total of 21,939 households in the US, aged 25-49 years, observed ≤ 8 years; 508 households initiated parenthood during the study period.
Main Outcome Measure:
Percentage of household grocery budget spent on produce each year.
Analysis:
Difference-in-differences design was used to measure change in the percentage of the grocery budget spent on produce after becoming a parent, relative to households that did not become parents, overall and stratified by income level. Ordinary least-squares regressions was used to adjust for confounders.
Results:
Percentage of the grocery budget spent on produce increased by 1.7 percentage points (15.7%) after initiating parenthood. Among higher-income households, produce purchases increased by 1.9 percentage points; no detectable change was found among low-income households.
Conclusions And Implications:
Initiation of parenthood increased grocery expenditures on produce. Because new parenthood is a critical time in a person's life, this behavior change could create the opportunity for interventions with long-term effects. However, heterogeneous impacts by income indicated that lower-income households need more support and reveal 1 mechanism for income-related disparities in childhood nutrition.
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