2024
County-level racial disparities in prostate cancer specific mortality from 2005 to 2020
Washington S, Fakunle M, Wang L, Braun A, Leapman M, Cowan J, Cooperberg M. County-level racial disparities in prostate cancer specific mortality from 2005 to 2020. JNCI Cancer Spectrum 2024, pkae109. PMID: 39495143, DOI: 10.1093/jncics/pkae109.Peer-Reviewed Original ResearchNon-Hispanic blacksRacial disparitiesCancer-specific mortalityCancer outcomesAssociated with lower mortality riskProstate cancer-specific mortalityProstate cancer outcomesNon-Hispanic white patientsLinear mixed models evaluated associationsPrimary care providersSpecific mortalityRadiation oncologist densityLower mortality riskYear of deathBlack-white differencesRace-based disparitiesMortality disparitiesProvider densityCare providersCounty-level dataHospital bedsMortality riskData of menProstate cancer specific mortality riskWhite patients
2023
Associations between patient sociodemographic factors and non-treatment for localized prostate cancer.
Novosel M, Smani S, Marks V, Jeong F, Sprenkle P, Leapman M. Associations between patient sociodemographic factors and non-treatment for localized prostate cancer. Journal Of Clinical Oncology 2023, 41: 307-307. DOI: 10.1200/jco.2023.41.6_suppl.307.Peer-Reviewed Original ResearchHigh-risk prostate cancerLocalized prostate cancerAggressive prostate cancerProstate cancerWhite patientsLower oddsDefinitive treatmentRisk strataSociodemographic factorsMean patient ageNational Cancer DatabaseHigh-risk diseasePatient sociodemographic factorsMultivariable logistic regressionClinical risk criteriaPatient ageImproved survivalBlack patientsInitial treatmentRisk diseaseAsian patientsRetrospective studyBlack raceInsurance statusPatient raceEvolution of systemic therapy from 2015 to 2019 for older patients in the United States with metastatic renal cell carcinoma.
Chow R, Long J, Hassan S, Wheeler S, Spees L, Leapman M, Hurwitz M, McManus H, Gross C, Dinan M. Evolution of systemic therapy from 2015 to 2019 for older patients in the United States with metastatic renal cell carcinoma. Journal Of Clinical Oncology 2023, 41: 610-610. DOI: 10.1200/jco.2023.41.6_suppl.610.Peer-Reviewed Original ResearchMetastatic renal cell carcinomaImmune checkpoint inhibitorsOral anti-cancer agentsNon-Hispanic white patientsSystemic therapyRenal cell carcinomaNHW patientsWhite patientsCell carcinomaMedicare beneficiariesService Medicare Parts ARetrospective cohort studyOverall treatment rateMedicare Part AIO therapyMRCC therapyAnti-cancer agentsCheckpoint inhibitorsCohort studyOlder patientsRandomized trialsSurvival improvementFirst therapyStudy criteriaTreatment receiptProstate cancer disparities among American Indians and Alaskan Natives in the United States
Chu C, Leapman M, Zhao S, Cowan J, Washington S, Cooperberg M. Prostate cancer disparities among American Indians and Alaskan Natives in the United States. Journal Of The National Cancer Institute 2023, 115: 413-420. PMID: 36629492, PMCID: PMC10086629, DOI: 10.1093/jnci/djad002.Peer-Reviewed Original ResearchConceptsProstate cancer-specific mortalityProstate-specific antigenAlaska Native patientsCancer-specific mortalityGleason scoreNative patientsDefinitive treatmentWhite patientsProstate cancerTreatment accessAlaska NativesProvider densityHigher prostate-specific antigenAdvanced prostate cancerPatterns of careExternal beam radiationAmerican IndiansProstate cancer disparitiesCounty-level demographicsHealth policy interventionsLower ratesMultivariable adjustmentBaseline characteristicsPathologic factorsWorse survival
2021
Mediators of racial disparity in the use of prostate MRI.
Leapman M, Dinan M, Pasha S, Washington S, Ma X, Gross C. Mediators of racial disparity in the use of prostate MRI. Journal Of Clinical Oncology 2021, 39: 6554-6554. DOI: 10.1200/jco.2021.39.15_suppl.6554.Peer-Reviewed Original ResearchProstate cancerRacial disparitiesProstate MRIMRI useArea-level measuresObserved racial disparitiesEligible patientsPathologic factorsDual eligibilityWhite patientsBlack patientsSEER regionMedicare databaseCancer careSix-month periodPatientsSociodemographic factorsCancerMRIZip codesOlder AmericansMediatorsDiagnostic toolObserved disparitiesHigh-poverty areas