Strengthening Community-Based Social Support Interventions to Improve Mental Health and Developmental Outcomes among At-Risk Children and Families in the United States

Abstract

Community-based social support interventions are vital for addressing mental health and developmental challenges among at-risk children and families in the U.S. This review highlights the effectiveness, implementation, and outcomes of programs targeting vulnerable groups affected by poverty, trauma, homelessness, and systemic barriers. Meta-analysis shows small-to-moderate effects (d=0.25), with stronger outcomes for environmental and family-focused interventions (d=0.38) and culturally adapted programs (d=0.38), compared to person-only approaches (d=0.03). Home-based programs like Child FIRST improved child language, externalizing behaviors, maternal mental health, and service access significantly. Family strengthening programs like the 4Rs/2Ss and CIFFTA had high retention (71-76%) and reduced behavioral problems and family conflict. Implementation research notes the value of paraprofessional models, family navigation, cultural adaptation, and integrated services. However, barriers like caregiver mental health issues, language gaps, transportation, and workforce shortages limit scaling. Protective factors such as parental resilience, social ties, and supports are key targets. Recommendations include multilevel, culturally responsive, and tech-enabled strategies to strengthen community support. Future research should focus on long-term follow-up, effectiveness comparisons, cost-benefit analyses, and strategies maintaining fidelity while increasing cultural relevance and accessibility.