2018
Variation in guideline-concordant care for elderly patients with metastatic breast cancer in the United States
Poorvu PD, Vaz-Luis I, Freedman RA, Lin NU, Barry WT, Winer EP, Hassett MJ. Variation in guideline-concordant care for elderly patients with metastatic breast cancer in the United States. Breast Cancer Research And Treatment 2018, 168: 727-737. PMID: 29332137, DOI: 10.1007/s10549-018-4659-4.Peer-Reviewed Original ResearchConceptsInitial systemic therapyMetastatic breast cancerSystemic therapyBreast cancerDe novo metastatic breast cancerNovo metastatic breast cancerEarly-stage breast cancerHuman epidermal receptor 2HR-positive patientsInitial systemic treatmentGuideline-concordant careHER2-positive patientsFirst-line therapyTriple-negative tumorsPatterns of careQuality of careGuideline concordanceInitial therapyMBC cohortUntreated patientsElderly patientsMost patientsSystemic treatmentInitial treatmentHospice utilization
2016
Treatment of early-stage human epidermal growth factor 2-positive cancers among medicare enrollees: age and race strongly associated with non-use of trastuzumab
Vaz-Luis I, Lin NU, Keating NL, Barry WT, Lii J, Burstein HJ, Winer EP, Freedman RA. Treatment of early-stage human epidermal growth factor 2-positive cancers among medicare enrollees: age and race strongly associated with non-use of trastuzumab. Breast Cancer Research And Treatment 2016, 159: 151-162. PMID: 27484879, DOI: 10.1007/s10549-016-3927-4.Peer-Reviewed Original ResearchConceptsAdjuvant trastuzumabOlder patientsSystemic treatmentBreast cancerHuman epidermal growth factor receptor 2HER2-positive breast cancerEpidermal growth factor receptor 2HER2-positive diseaseStage III diseaseCongestive heart failureGrowth factor receptor 2Positive breast cancerFactor receptor 2Treatment omissionEndocrine therapyClinical characteristicsSystemic therapyHeart failureBlack patientsTreatment disparitiesTreatment patternsHuman epidermal growth factorEpidermal growth factorMedicare dataPatients
2014
Patterns of chemotherapy, toxicity, and short-term outcomes for older women receiving adjuvant trastuzumab-based therapy
Freedman RA, Vaz-Luis I, Barry WT, Lii H, Lin NU, Winer EP, Keating NL. Patterns of chemotherapy, toxicity, and short-term outcomes for older women receiving adjuvant trastuzumab-based therapy. Breast Cancer Research And Treatment 2014, 145: 491-501. PMID: 24756187, DOI: 10.1007/s10549-014-2968-9.Peer-Reviewed Original ResearchConceptsNon-standard chemotherapyTrastuzumab-based therapyAdjuvant trastuzumab-based therapyOlder womenChemotherapy receiptHazard ratioBreast cancerHER2-positive breast cancerPattern of chemotherapyPropensity-weighted cohortsToxicity-related hospitalizationAdjusted hazard ratioTreatment-related toxicityMonths of chemotherapyShort-term outcomesMultivariable logistic regressionPopulation-based cohortPropensity score adjustmentAssociation of ageShort-term survivalComorbidity scoreOlder patientsTreatment toxicityWorse survivalHospital eventsDuration and Toxicity of Adjuvant Trastuzumab in Older Patients With Early-Stage Breast Cancer: A Population-Based Study
Vaz-Luis I, Keating NL, Lin NU, Lii H, Winer EP, Freedman RA. Duration and Toxicity of Adjuvant Trastuzumab in Older Patients With Early-Stage Breast Cancer: A Population-Based Study. Journal Of Clinical Oncology 2014, 32: 927-934. PMID: 24516021, PMCID: PMC3948095, DOI: 10.1200/jco.2013.51.1261.Peer-Reviewed Original ResearchConceptsEarly-stage breast cancerCardiac eventsOlder patientsBreast cancerTrastuzumab completionAdjuvant trastuzumabTreatment completionOlder womenHuman epidermal growth factor receptorAdjuvant trastuzumab useAge 76 yearsDays of therapyMost older patientsSignificant cardiac eventsMultivariable logistic regressionEpidermal growth factor receptorGrowth factor receptorMore comorbiditiesTrastuzumab useComorbidity scorePatient ageHospital admissionOptimal treatmentLower oddsMedicare data
2010
Outcomes following local therapy for early-stage breast cancer in non-trial populations
Keating NL, Landrum MB, Brooks JM, Chrischilles EA, Winer EP, Wright K, Volya R. Outcomes following local therapy for early-stage breast cancer in non-trial populations. Breast Cancer Research And Treatment 2010, 125: 803-813. PMID: 20376555, PMCID: PMC2924956, DOI: 10.1007/s10549-010-0865-4.Peer-Reviewed Original ResearchConceptsBreast-conserving surgeryEarly-stage breast cancerClinical trialsBreast cancerEarly-stage breast cancer patientsPrimary breast cancer therapyPrimary breast cancer treatmentEnd Results cancer registryNon-trial populationBreast cancer patientsPopulation-based dataBreast cancer treatmentBreast cancer therapyNon-selected populationPropensity score analysisMedicare administrative dataMore mastectomiesPrimary therapyLocal therapySurveillance EpidemiologyAdjusted survivalCancer RegistryCancer patientsHospital characteristicsMastectomy
2009
Racial Differences in Definitive Breast Cancer Therapy in Older Women
Keating NL, Kouri E, He Y, Weeks JC, Winer EP. Racial Differences in Definitive Breast Cancer Therapy in Older Women. Medical Care 2009, 47: 765-773. PMID: 19536008, DOI: 10.1097/mlr.0b013e31819e1fe7.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedBlack or African AmericanBreast NeoplasmsChi-Square DistributionFemaleHealth Services ResearchHealthcare DisparitiesHospitalsHumansLogistic ModelsMastectomyMedicareMultivariate AnalysisPractice Patterns, Physicians'Quality of Health CareSEER ProgramSensitivity and SpecificitySocioeconomic FactorsUnited StatesWhite PeopleConceptsHigh-volume hospitalsDefinitive primary therapyHigh-quality hospitalsBreast-conserving surgeryBreast cancer therapyBreast cancerPrimary therapyWhite womenRacial disparitiesStage I/II breast cancerBlack womenPrimary breast cancer therapyEarly-stage breast cancerLow-volume hospitalsBreast cancer patientsBreast cancer surgeryPatterns of careSEER-Medicare databaseCancer therapyPopulation-based sampleOlder Black womenDefinitive therapyVolume hospitalsCancer surgeryCancer patients
2008
Ten-Year Survival and Cost Following Breast Cancer Recurrence: Estimates from SEER-Medicare Data
Stokes ME, Thompson D, Montoya EL, Weinstein MC, Winer EP, Earle CC. Ten-Year Survival and Cost Following Breast Cancer Recurrence: Estimates from SEER-Medicare Data. Value In Health 2008, 11: 213-220. PMID: 18380633, DOI: 10.1111/j.1524-4733.2007.00226.x.Peer-Reviewed Original ResearchConceptsBreast cancer recurrenceBreast cancer eventsContralateral breast cancerNonmetastatic breast cancerSEER-Medicare dataBreast cancerCancer recurrenceDistant recurrenceSurveillance EpidemiologyCancer eventsMedicare claimsNational Cancer Institute's Surveillance EpidemiologyBreast cancer leadEnd Results registryTen-year survivalImpact of recurrencePaucity of dataMedian survivalPharmacologic therapyLocal recurrenceRetrospective analysisRecurrencePatientsCancer leadCancer
2005
The association of ambulatory care with breast cancer stage at diagnosis among medicare beneficiaries
Keating NL, Landrum MB, Ayanian JZ, Winer EP, Guadagnoli E. The association of ambulatory care with breast cancer stage at diagnosis among medicare beneficiaries. Journal Of General Internal Medicine 2005, 20: 38-44. PMID: 15693926, PMCID: PMC1490029, DOI: 10.1111/j.1525-1497.2004.40079.x.Peer-Reviewed Original ResearchConceptsPrimary care physiciansCare physiciansBreast cancer diagnosisAdvanced cancerOutpatient careNumber of visitsMedical specialistsAdvanced stage diagnosisPreventive care visitsRetrospective cohort studyCancer diagnosisBreast cancer stagePercent of womenPopulation-based sampleCare visitsCohort studyCancer RegistryCancer stageUse of servicesElderly womenAdjusted ratesBreast cancerLower median incomeAmbulatory careHigh risk
2003
Quality of non-breast cancer health maintenance among elderly breast cancer survivors.
Earle CC, Burstein HJ, Winer EP, Weeks JC. Quality of non-breast cancer health maintenance among elderly breast cancer survivors. Journal Of Clinical Oncology 2003, 21: 1447-51. PMID: 12697865, DOI: 10.1200/jco.2003.03.060.Peer-Reviewed Original ResearchConceptsBreast cancer survivorsCancer survivorsPreventive servicesElderly breast cancer survivorsHealth maintenanceNonmetastatic breast cancerGeneral medical carePrimary care physiciansPreventive health careHigh-quality preventive servicesHigh-quality careTypes of practitionersHigher socioeconomic statusCare physiciansMammographic screeningOncology specialistsAppropriate followCancer recurrenceElderly womenNonmedical factorsRegistry areasBreast cancerHealth care participationProvider characteristicsMedicare data