Program, cultural and neighbourhood factors related to attrition from a community-based enriched medical home program in the United States.

Attrition from clinical interventions targeting underserved populations is a substantive challenge to achieving optimal health outcomes. Our nationally recognised enriched medical home intervention (EMHI) utilised community health worker home visitation to improve health outcomes of children by engaging the entire family and removing barriers to care-seeking. Families were enrolled into the program between 2013 and 2016, and, as part of the evaluation of the program's success, we identified predictors of program completion by conducting a secondary analysis of 304 families participating in the EMHI evaluation research. Program completers finished participation in the EMHI with mutual agreement that the family can independently follow recommended care. Program non-completers were either lost to follow-up or dropped out before reaching this milestone. Data were collected using electronic medical records and validated self-report surveys to assess constructs such as social support, mental health difficulties and neighbourhood characteristics. The EMHI participants were primarily families with infants <24 months old, Medicaid-insured and Latino. In the multivariable logistic regression model, EMHI program factors as well as community factors independently predicted program continuation and retention. Specifically, families learning about newborn care or with preferred spoken language Spanish were more likely to complete the program. Participants reporting neighbourhood distrust had a greater likelihood of non-completion than others. Results underscore the importance of cultural competency and community involvement in program design and dissemination. Our findings are applicable to other home-based interventions with the goal of supporting underserved families in following recommended clinical care.