2024
Attributing Racial Differences in Care to Health Plan Performance or Selection
Wallace J, Ndumele C, Lollo A, Macambira D, Lavallee M, Green B, Duchowny K, McWilliams J. Attributing Racial Differences in Care to Health Plan Performance or Selection. JAMA Internal Medicine 2024, 185 PMID: 39585673, PMCID: PMC11589859, DOI: 10.1001/jamainternmed.2024.5451.Peer-Reviewed Original ResearchEmergency department visitsPrimary care visitsCross-sectional studyDepartment visitsCare visitsRacial differencesWhite enrolleesMagnitude of racial differencesHealth equity metricHealth care disparitiesWhite Medicaid enrolleesSelection biasSouthern US statesPlanning indicatorsPrescription drug useCare disparitiesSelf-identified blacksHealth plansMain OutcomesEffectiveness of planningPublic reportingAdministrative claimsRandom populationMedicaid populationMedicaid enrollees
2022
Residual Confounding in Health Plan Performance Assessments: Evidence From Randomization in Medicaid.
Wallace J, McWilliams JM, Lollo A, Eaton J, Ndumele CD. Residual Confounding in Health Plan Performance Assessments: Evidence From Randomization in Medicaid. Annals Of Internal Medicine 2022, 175: 314-324. PMID: 34978862, DOI: 10.7326/m21-0881.Peer-Reviewed Original ResearchConceptsResidual confoundingObservational populationRandomized populationCare useMedicaid populationRisk adjustmentAvoidable emergency department visitsState Medicaid populationDental care usePrimary care useEmergency department visitsHealth plan performancePlan performancePatient characteristicsDepartment visitsBaseline differencesPatient differencesArnold VenturesFurther adjustmentEnrollee characteristicsEnrolleesTotal spendingProvider effectsConfoundingMean spending