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 enrolleesSupplemental Nutrition Assistance Program Work Requirements and Safety-Net Program Participation
Ndumele C, Factor H, Lavallee M, Lollo A, Wallace J. Supplemental Nutrition Assistance Program Work Requirements and Safety-Net Program Participation. JAMA Internal Medicine 2024, 185 PMID: 39495527, PMCID: PMC11536301, DOI: 10.1001/jamainternmed.2024.5932.Peer-Reviewed Original ResearchSupplemental Nutrition Assistance ProgramSNAP work requirementsAble-bodied adultsChronic conditionsCharacteristics of individualsLow-incomeCohort studyMedicaid coverageNutrition Assistance ProgramSocioeconomic characteristics of individualsProportion of enrolleesChronic illnessMain OutcomesProgram enrollmentMedicaid enrolleesYounger beneficiariesSocioeconomic characteristicsMedicaidStatistically significant changesTarget populationEnrolleesAssistance programsCaregiversSafety-net programsBeneficiariesRacial and Ethnic Disparities in Age-Specific All-Cause Mortality During the COVID-19 Pandemic
Faust J, Renton B, Bongiovanni T, Chen A, Sheares K, Du C, Essien U, Fuentes-Afflick E, Haywood T, Khera R, King T, Li S, Lin Z, Lu Y, Marshall A, Ndumele C, Opara I, Loarte-Rodriguez T, Sawano M, Taparra K, Taylor H, Watson K, Yancy C, Krumholz H. Racial and Ethnic Disparities in Age-Specific All-Cause Mortality During the COVID-19 Pandemic. JAMA Network Open 2024, 7: e2438918. PMID: 39392630, PMCID: PMC11581672, DOI: 10.1001/jamanetworkopen.2024.38918.Peer-Reviewed Original ResearchConceptsCOVID-19 public health emergencyNon-HispanicPublic health emergencyOther Pacific IslanderExcess mortalityAlaska NativesUS populationExcess deathsRates of excess mortalityCross-sectional study analyzed dataYears of potential lifeMortality relative riskNon-Hispanic whitesCross-sectional studyPacific IslandersStudy analyzed dataAll-cause mortalityEthnic groupsMortality disparitiesMortality ratioTotal populationDeath certificatesEthnic disparitiesMain OutcomesDecedent ageAlternative Payment Models and Performance in Federally Qualified Health Centers
Markowski J, Wallace J, Schlesinger M, Ndumele C. Alternative Payment Models and Performance in Federally Qualified Health Centers. JAMA Internal Medicine 2024, 184: 1065-1073. PMID: 38976258, PMCID: PMC11231906, DOI: 10.1001/jamainternmed.2024.2754.Peer-Reviewed Original ResearchPayment modelsMeasures of health care qualityPayer mixFederally Qualified Health CentersCohort studyValue-based payment modelsHealth care safety netColorectal cancer screeningHealth promotion modelHealth care qualityQualified Health CentersUniform Data SystemHealth outcome measuresAlternative payment modelsRisk profileFQHC patientsAssociated with clinicCare qualityChild BMIAdult BMICancer screeningState Medicaid programsIncentivizing qualityHealth centersRetrospective cohort study
2023
Eligibility for Cardiovascular Risk Reduction Therapy in the United States Based on SELECT Trial Criteria: Insights From the National Health and Nutrition Examination Survey
Lu Y, Liu Y, Jastreboff A, Khera R, Ndumele C, Rodriguez F, Watson K, Krumholz H. Eligibility for Cardiovascular Risk Reduction Therapy in the United States Based on SELECT Trial Criteria: Insights From the National Health and Nutrition Examination Survey. Circulation Cardiovascular Quality And Outcomes 2023, 17: e010640. PMID: 37950677, PMCID: PMC10782930, DOI: 10.1161/circoutcomes.123.010640.Peer-Reviewed Original ResearchVariation in Procedural Denials of Medicaid Eligibility Across States Before the COVID-19 Pandemic
Schpero W, Brahmbhatt D, Liu M, Ndumele C, Chatterjee P. Variation in Procedural Denials of Medicaid Eligibility Across States Before the COVID-19 Pandemic. JAMA Health Forum 2023, 4: e233892. PMID: 37976050, PMCID: PMC10656645, DOI: 10.1001/jamahealthforum.2023.3892.Peer-Reviewed Original ResearchAfter 50 Years, Health Professional Shortage Areas Had No Significant Impact On Mortality Or Physician Density
Markowski J, Wallace J, Ndumele C. After 50 Years, Health Professional Shortage Areas Had No Significant Impact On Mortality Or Physician Density. Health Affairs 2023, 42: 1507-1516. PMID: 37931191, DOI: 10.1377/hlthaff.2023.00478.Peer-Reviewed Original ResearchAssociation between Medicare eligibility at age 65 years and in-hospital treatment patterns and health outcomes for patients with trauma: regression discontinuity approach
Bhaumik D, Ndumele C, Scott J, Wallace J. Association between Medicare eligibility at age 65 years and in-hospital treatment patterns and health outcomes for patients with trauma: regression discontinuity approach. The BMJ 2023, 382: e074289. PMID: 37433620, PMCID: PMC10334336, DOI: 10.1136/bmj-2022-074289.Peer-Reviewed Original ResearchConceptsAge 65 yearsHealth insurance coverageHospital admissionTreatment patternsInsurance coverageSimilar patientsTrauma encountersAge 65Health systemLevel II trauma centerPatient's hospital admissionShare of patientsMain outcome measuresProcess of careDischarge planning processHospital mortalityHospital stayTrauma centerTrauma bayTreatment decisionsOutcome measuresAmerican CollegeInpatient facilitiesLevel INursing homesExcess Mortality and Years of Potential Life Lost Among the Black Population in the US, 1999-2020
Caraballo C, Massey D, Ndumele C, Haywood T, Kaleem S, King T, Liu Y, Lu Y, Nunez-Smith M, Taylor H, Watson K, Herrin J, Yancy C, Faust J, Krumholz H. Excess Mortality and Years of Potential Life Lost Among the Black Population in the US, 1999-2020. JAMA 2023, 329: 1662-1670. PMID: 37191702, PMCID: PMC10189563, DOI: 10.1001/jama.2023.7022.Peer-Reviewed Original ResearchConceptsExcess mortality ratesExcess deathsMortality ratePotential lifeWhite populationExcess mortalitySerial cross-sectional studyHighest excess mortality ratesBlack populationCause-specific mortalityCross-sectional studyHigh mortality rateNon-Hispanic whitesYears of lifeUS national dataMiddle-aged adultsCause mortalityHeart diseaseDeath certificatesNon-Hispanic black populationMAIN OUTCOMEAge groupsDisease controlMortalityBlack malesRisk Adjustment And Health Equity: The Authors Reply
McWilliams J, Weinreb G, Ndumele C, Wallace J. Risk Adjustment And Health Equity: The Authors Reply. Health Affairs 2023, 42: 732-732. PMID: 37126745, DOI: 10.1377/hlthaff.2023.00297.Peer-Reviewed Original ResearchRisk Adjustment And Promoting Health Equity In Population-Based Payment: Concepts And Evidence
McWilliams J, Weinreb G, Ding L, Ndumele C, Wallace J. Risk Adjustment And Promoting Health Equity In Population-Based Payment: Concepts And Evidence. Health Affairs 2023, 42: 105-114. PMID: 36623215, PMCID: PMC9901844, DOI: 10.1377/hlthaff.2022.00916.Peer-Reviewed Original ResearchConceptsRisk adjustmentHealth equityCurrent risk adjustmentHealth care useSocial risk factorsPromoting Health EquityFunctional statusCare useRisk factorsMedicare populationEthnic disparitiesHispanic beneficiariesSocial determinantsWhite beneficiariesPopulation-based paymentsPopulation-based payment modelAnnual spendingPayment modelsHigher proportionPopulationAdjustmentPredictive accuracy
2022
Long-Term Stability of Coverage Among Michigan Medicaid Beneficiaries : A Cohort Study.
Ndumele C, Lollo A, Krumholz H, Schlesinger M, Wallace J. Long-Term Stability of Coverage Among Michigan Medicaid Beneficiaries : A Cohort Study. Annals Of Internal Medicine 2022, 176: 22-28. PMID: 36469920, DOI: 10.7326/m22-1313.Peer-Reviewed Original Research