Outcomes after peripheral artery disease intervention among Medicare–Medicaid dual-eligible patients compared with the general medicare population in the Vascular Quality Initiative registry

ObjectiveTo determine whether patients from the Vascular Quality Initiative (VQI) registry who are Medicare–Medicaid dual-eligible have outcomes after surgical intervention with medical devices such as stents for peripheral artery disease comparable to the outcomes of those eligible for Medicare alone.MethodsThe study cohort included fee-for-service Medicare beneficiaries from 2010 to 2015 who underwent peripheral vascular intervention as determined by the VQI. We performed propensity matching between the dual-eligible and non-dual-eligible cohorts. Postintervention use, including imaging, amputation and death, was determined using Medicare claims data.ResultsRates of major amputation were higher among dual-eligible patients (13.0% vs 10.5%, p