Costing a population health management approach for participant recruitment to a diabetes prevention study

Background Limited research has reported the economic feasibility—from both a research and practice perspective—of efforts to recruit and enroll an intended audience in evidence-based approaches for disease prevention. This study aims to retrospectively assess and estimate the costs of a population health management (PHM) approach to identify, engage, and enroll patients in a Type 1 Hybrid Effectiveness-Implementation (HEI), diabetes-prevention trial. Methods We used descriptive analyses and activity-based costing to estimate the recruitment costs of a PHM approach integrated within a HEI trial. Measures included total costs and costs per participant screened and enrolled to ensure trial accrual rates were achieved. We took the perspective of a healthcare system which may adopt, and possibly sustain, the strategy in the typical practice. We also estimated replication costs based on how the strategy could be applied in healthcare systems interested in referring patients to a local diabetes prevention program from a payer perspective. In this case, we examined differences in cost based on requirements for and types of, glucose testing, and by labor activities and non-labor resources associated with recruitment using sensitivity analyses. Results The total recruitment and enrollment costs were $389,949 to accrue 599 participants over approximately 15 months. The average cost per screened and enrolled participant was $276 and $651, respectively. Primary costs included hemoglobin A1c testing ($83,106), recruitment screening calls ($48,791), and personnel time ($96,187). Translating to the typical settings, total recruitment costs for replication was estimated as $192,625 (range: $42,523-$208,876). Sensitivity analysis results indicated replication costs would be approximately $229 - $430 per patient enrolled if glucose testing was necessary, based on the Medicare covered services. For a private payer perspective, and without glucose testing, per-participant screening and enrollment costs were estimated at $30. Conclusions A PHM approach can be used to accrue a large number of participants in a short period of time for an HEI trial, at a comparable cost per participant. However, when trial requirements are removed and PHM approaches are used as a method for healthcare systems to identify and enroll patients in a local program—the costs are relatively low.