RESUMEN

OBJECTIVES: The Medicare Diabetes Prevention Program (MDPP) launched in April 2018, offering an unprecedented opportunity to reach the estimated 48.3% of older adults with prediabetes. Success of the innovative policy is likely to depend on adequate supplier availability. We examined supplier data from CMS to assess beneficiaries' potential access to MDPP services. STUDY DESIGN: We conducted a descriptive analysis of MDPP suppliers using data extracted from the CMS registry of suppliers as of July 2019 and data about beneficiary populations. METHODS: Identifying the location, type, and number of MDPP suppliers and their respective sites, including within states, US territories, and the District of Columbia (hereafter, states), we mapped geographic coverage of MDPP access. RESULTS: There are 126 unique supplier organizations that offer the MDPP across 601 sites, equating to only 1 site per 100,000 Medicare beneficiaries. Seventy-five percent of states have no MDPP sites, fewer than 1 site per 100,000 beneficiaries, and/or availability limited to a single municipality. Although only 10.3% of MDPP suppliers are community-based organizations, they represent more than half (55.7%) of sites where beneficiaries can access the program. CONCLUSIONS: Findings show inadequate MDPP access, with relatively few suppliers and locations where beneficiaries can receive services. Insufficient reimbursement relative to costs for suppliers may largely account for limited availability. Strategies to facilitate access are urgently needed, which may include partnering with large organizations for greater per capita reach and rural organizations for broader geographic coverage, along with setting fiscally sustainable rates based on refined program implementation and cost analysis.

Asunto(s)

Centers for Medicare and Medicaid Services, U.S./economía , Centers for Medicare and Medicaid Services, U.S./estadística & datos numéricos , Industria Farmacéutica/economía , Industria Farmacéutica/estadística & datos numéricos , Estado Prediabético/prevención & control , Servicios Preventivos de Salud/economía , Servicios Preventivos de Salud/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estados Unidos

RESUMEN

BACKGROUND: Type 2 diabetes affects 9.4% of US adults with higher rates among racial and ethnic minorities and individuals of low socioeconomic status. The National Diabetes Prevention Program (NDPP) is an evidence-based and widely disseminated behavioral intervention to reduce diabetes incidence through modest weight loss. However, retention in the yearlong NDPP is problematic and leads to suboptimal weight loss, especially among diverse, underserved populations. Strategies to improve NDPP engagement and weight loss are needed urgently. Pilot results of the pre-NDPP, a novel enhancement to enrollment in the NDPP based on the Health Belief Model, were highly successful in a nonrandomized cohort study among 1140 racially diverse, predominately low-income participants. A total of 75 presession participants had doubled attendance and weight loss as compared with earlier participants who did not receive presessions. On the basis of these promising results, we are conducting a randomized controlled trial (RCT) to determine whether pre-NDPP reliably improves NDPP outcomes, as reported on ClinicalTrials.gov. OBJECTIVE: This study aims to (1) conduct an RCT comparing NDPP attendance and weight loss outcomes between participants who receive pre-NDPP versus direct enrollment into the NDPP (usual care), (2) examine potential effect mediators (perceived risk for developing diabetes and self-efficacy and readiness for weight control) and moderators (race and ethnicity; income level), and (3) evaluate implementation factors, including cost and projected return on investment. METHODS: This two-arm RCT will compare outcomes among diverse, predominately low-income participants who receive pre-NDPP versus direct enrollment into the NDPP (usual care). This is a type 1 hybrid effectiveness-implementation design to determine clinical effectiveness through an RCT, while assessing factors that may impact future pre-NDPP dissemination and implementation, including cost. Our primary research question is whether pre-NDPP improves NDPP attendance and weight loss compared with standard NDPP delivery. RESULTS: This project was funded in April 2019. Recruitment is underway as of July 2019. Initial participants began the intervention in October 2019. Data analysis and results reporting are expected to be completed in 2024. CONCLUSIONS: This RCT of pre-NDPP may lead to future dissemination of a scalable, evidence-based strategy to improve success of the NDPP, reduce disparities in NDPP effectiveness, and help prevent type 2 diabetes across the country. TRIAL REGISTRATION: ClinicalTrials.gov NCT04022499; https://clinicaltrials.gov/ct2/show/NCT04022499. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/15499.