Effectiveness of a Latino(a) Community Health Worker Led National Diabetes Prevention Program.

PurposeTo evaluate the real-world effectiveness of a longstanding community-based National Diabetes Prevention Program (DPP) on participation and weight-loss for Latino(a) adults.DesignRetrospective cohort analysis.SettingThe yearlong program was delivered in an urban area of Colorado by a team of Latino(a) community health workers in partnership with a safety-net healthcare organization.SubjectsNational DPP participants between January 2014 and December 2023.MeasuresOutcome measures included National DPP sessions attended and achievement of ≥5% weight loss. Covariates included demographics, body mass index, self-reported physical activity, and health status.AnalysisDescriptive statistics and multivariable logistic regression analyses evaluated associations between demographic and program-related characteristics with program attendance and ≥5% weight loss.Results2377 participants were included; median age 44 years (IQR 37, 52), 86.1% female, 89.8% Latino(a), and 82.0% Spanish speakers. Among 1988 participants who attended ≥8 of 20 sessions within 6 months and had 2 or more weight values, 31.6% achieved ≥5% weight loss. Weight loss of ≥5% was associated with male sex, attendance of ≥16 of 26 sessions, participation in later cohorts, ≥20% sessions with ≥150 minutes per week physical activity, and high self-reported health status.ConclusionCommunity-based National DPP programs can be an effective strategy for increasing program participation and supporting weight loss among Latino(a) adults. Ongoing efforts to engage Latino men in such programs are needed.