Abstract B019: Estimating the costs and cost-effectiveness of promoting mammography screening among US-based Latinas

Abstract Purpose: We characterize the costs and cost-effectiveness of a community health worker (CHW)-based intervention to promote screening mammography among US-based non-adherent Latinas. Methods: The parent study was a randomized controlled trial for 536 Latinas aged 42-74 years old who had sought care within a safety net health center in Western Washington. Participants were block-randomized within clinic to the control arm (usual care) or intervention arm (CHW-led motivational interviewing intervention). We used the perspective of the organization implementing promotional activities to characterize costs and cost-effectiveness. Cost data were categorized as program set-up and maintenance (initial training, booster/annual training) program implementation (administrative activities, intervention delivery); and, overhead/miscellaneous expenses. Cost-effectiveness was calculated as the incremental cost of screening for each additional woman screened between the intervention and control arms. Results: The respective costs per participant for standard care and the intervention arm were $69.96 and $300.99. Most costs pertained to program implementation and administrative activities specifically. The incremental cost per additional woman screened was $2,595.32. Conclusions: Our findings are within the ranges of costs and cost-effectiveness for other CHW programs to promote screening mammography among underserved populations. Our strong study design and focus on non-adherent women provides important strengths to this body of work, especially given implementation and dissemination science efforts regarding CHW-based health promotion for health disparity populations. Citation Format: Catherine M Pichardo, Yamilé Molina, Donald L Patrick, Scott D Ramsey, Sonia Bishop, Shirley A.A. Beresford, Gloria D Coronado. Estimating the costs and cost-effectiveness of promoting mammography screening among US-based Latinas [abstract]. In: Proceedings of the Twelfth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2019 Sep 20-23; San Francisco, CA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(6 Suppl_2):Abstract nr B019.