Abstract
IMPORTANCE: Food insecurity among households with children and economic hardship is a persistent US challenge. Federal food assistance programs have been unable to fully address food insecurity, leading to interest in the role other labor and economic policies could play. One relevant state-level policy that has received limited attention is the state minimum wage. OBJECTIVE: To assess whether state minimum wage generosity was associated with change in food insecurity among households with children and explore differential policy impacts across sociodemographic groups. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study of a national sample of US households from the Current Population Survey used a 2-way fixed effects modeling approach to test whether increases in state minimum wage from 2005 to 2022 were associated with improvements in food insecurity controlling for household- and state-level time-varying covariates. Working households with children who were most likely to be affected by policy changes (ie, limited educational attainment) were included. Analyses were conducted in July through September 2024. EXPOSURE: The 2022 inflation-adjusted effective minimum wage for each state in December which was derived from legal sources. MAIN OUTCOMES AND MEASURES: Past-month household food insecurity assessed in December 2022. RESULTS: The sample of 97 944 working households with children and limited educational attainment were mostly female headed (54 077 [55.2%]) with a mean (SD) 1.8 (1.1) children in the home; 22 130 households (22.6%) reported Hispanic identity, 10 545 non-Hispanic Black (10.8%), and 59 500 non-Hispanic White (60.8%). Inflation-adjusted state minimum wage ranged from $7.15 to $16.85 over the 18-year study period. We observed that a 10% increase in the state minimum wage was significantly associated with a 0.39 percentage point reduction (95% CI, -0.74 to -0.04 percentage points; P = .03) in food insecurity. There was limited evidence of differences in the association across race and ethnicity, participation in the US Supplemental Nutrition Assistance Program, or household composition. CONCLUSIONS AND RELEVANCE: In this pooled cross-sectional study, findings suggest that state legislatures that elected to increase their state minimum wage may have also improved state food security rates among households with children at risk for economic hardship. Findings provide policymakers with actionable evidence to consider in setting minimum wages that could reduce the burden of food insecurity among US children and families.