LAUSR

Key Points Question What is the frequency, cost, and source of low-value prostate-specific antigen (PSA) testing and subsequent care cascades among veterans dually enrolled in the US Veterans Health Administration (VHA) and Medicare systems? Findings In this cohort study of 300 393 dually enrolled US male veterans, those who underwent low-value PSA testing within the VHA vs Medicare experienced 31 vs 39 additional cascade services per 100 veterans, respectively, compared with the control group. Veterans who underwent low-value PSA testing through Medicare experienced substantially more cascade services (9.9 additional cascade services per 100 veterans) than those who underwent PSA testing within the VHA. Meaning Care cascades after low-value PSA testing are common among veterans dually enrolled in the VHA and Medicare and occur through multiple sources of care.