2019
Peer Influence on Physician Use of Shorter Course External Beam Radiation Therapy for Patients with Breast Cancer
Yu JB, Pollack CE, Herrin J, Soulos PR, Zhu W, Xu X, Gross CP. Peer Influence on Physician Use of Shorter Course External Beam Radiation Therapy for Patients with Breast Cancer. Practical Radiation Oncology 2019, 10: 75-83. PMID: 31785370, PMCID: PMC7061062, DOI: 10.1016/j.prro.2019.11.001.Peer-Reviewed Original ResearchConceptsAdjuvant external beam radiation therapyExternal beam radiation therapyPhysician peer groupsPalliative external beam radiation therapyBeam radiation therapyBreast cancerAdjuvant therapyBone metastasesPatient receiptRadiation therapyBreast-conserving surgeryMixed-effects logistic regressionPatient-sharing relationshipsPalliative therapyCancer careMedicare beneficiariesPatientsPhysician useTherapyLogistic regressionShort courseCancerPhysiciansGroup rateMetastasisCollaborative Tele-Rehabilitation Among Patients With Advanced Stage Cancers: A Randomized Controlled Trial
Cheville A, Moynihan T, Herrin J, Kroenke K, Loprinzi C. Collaborative Tele-Rehabilitation Among Patients With Advanced Stage Cancers: A Randomized Controlled Trial. Archives Of Physical Medicine And Rehabilitation 2019, 100: e18. DOI: 10.1016/j.apmr.2019.08.035.Peer-Reviewed Original ResearchQuality Versus Quantity
Chiu AS, Arnold BN, Hoag JR, Herrin J, Kim CH, Salazar MC, Monsalve AF, Jean RA, Blasberg JD, Detterbeck FC, Gross CP, Boffa DJ. Quality Versus Quantity. Annals Of Surgery 2019, Publish Ahead of Print: &na;. PMID: 29697446, DOI: 10.1097/sla.0000000000002762.Peer-Reviewed Original ResearchConceptsComplex cancer surgeryCancer surgerySafe hospitalComplex oncologic surgeryPotential mortality reductionNational Cancer DatabaseHigh-volume hospitalsHospital quality measuresSurgical mortalityPrimary cancerHospital rating systemsOncologic surgeryCancer DatabaseMortality reductionSurgical volumeHospital safetyPatient realignmentPatientsHospitalSurgeryMeaningful reductionPublic reportingMortalityRSMRCancerPersistent Use of Extended Fractionation Palliative Radiotherapy for Medicare Beneficiaries With Metastatic Breast Cancer, 2011 to 2014
Yu JB, Pollack CE, Herrin J, Zhu W, Soulos PR, Xu X, Gross CP. Persistent Use of Extended Fractionation Palliative Radiotherapy for Medicare Beneficiaries With Metastatic Breast Cancer, 2011 to 2014. American Journal Of Clinical Oncology 2019, 42: 493-499. PMID: 31033511, PMCID: PMC6538429, DOI: 10.1097/coc.0000000000000548.Peer-Reviewed Original ResearchConceptsPalliative radiotherapyBone metastasesMedicare beneficiariesBreast cancerAssociation of clinicalProportion of patientsChoice of treatmentHospital-based practiceService Medicare beneficiariesSingle-fraction treatmentProvider financial incentivesLogistic regression modelsDifferent fractionation schemesProlonged courseRadiation courseRadiotherapy usePayer perspectiveProvider characteristicsMean costMultiple guidelinesPatientsRadiotherapyMetastasisCancerNumber of days
2018
An empiric approach to identifying physician peer groups from claims data: An example from breast cancer care
Herrin J, Soulos PR, Xu X, Gross CP, Pollack CE. An empiric approach to identifying physician peer groups from claims data: An example from breast cancer care. Health Services Research 2018, 54: 44-51. PMID: 30488484, PMCID: PMC6338298, DOI: 10.1111/1475-6773.13095.Peer-Reviewed Original ResearchConceptsPhysician peer groupsClaims dataEnd Results-MedicareBreast cancer careAdministrative claims dataHospital-based groupEmpiric approachCancer careBreast cancerHospital groupPatientsPatient volumePhysiciansEmpirical groupGroup reliabilityPhysician inclusionPercentGroupMedian overlapT1CancerPeer groupEpidemiologySurgeon peer network characteristics and adoption of new imaging techniques in breast cancer: A study of perioperative MRI
Tannenbaum SS, Soulos PR, Herrin J, Pollack CE, Xu X, Christakis NA, Forman HP, Yu JB, Killelea BK, Wang S, Gross CP. Surgeon peer network characteristics and adoption of new imaging techniques in breast cancer: A study of perioperative MRI. Cancer Medicine 2018, 7: 5901-5909. PMID: 30444005, PMCID: PMC6308117, DOI: 10.1002/cam4.1821.Peer-Reviewed Original ResearchConceptsPrimary care physiciansPatient-sharing networksBreast cancerPerioperative MRISubsequent receiptNon-cancer patientsBreast cancer practiceMultivariable hierarchical modelsUse of MRIClinical characteristicsCare physiciansFemale patientsCancer practiceMedicare databaseNew imaging techniquesMedicare sampleStage 0Claims dataPatientsPhysician groupsMRISurgeonsCancerEquivocal evidencePhysiciansPhysician peer group characteristics and timeliness of breast cancer surgery
Bachand J, Soulos PR, Herrin J, Pollack CE, Xu X, Ma X, Gross CP. Physician peer group characteristics and timeliness of breast cancer surgery. Breast Cancer Research And Treatment 2018, 170: 657-665. PMID: 29693229, PMCID: PMC6048589, DOI: 10.1007/s10549-018-4789-8.Peer-Reviewed Original ResearchConceptsPhysician peer groupsSurgical delayProvider densityPatient racial compositionBreast cancerEnd Results-Medicare dataBreast cancer patientsBreast cancer surgeryResultsThe study sampleConclusionsThe likelihoodBlack patientsCancer surgeryCancer patientsSurgeryPatientsStudy sampleWomenCancerAssociationGroupGroup characteristicsPurposeLittleInterdisciplinary groupPeer groupEpidemiology
2017
Regional Medicare Expenditures and Survival Among Older Women With Localized Breast Cancer
Tannenbaum S, Soulos PR, Herrin J, Mougalian S, Long JB, Wang R, Ma X, Gross CP, Xu X. Regional Medicare Expenditures and Survival Among Older Women With Localized Breast Cancer. Medical Care 2017, 55: 1030-1038. PMID: 29068906, PMCID: PMC5863278, DOI: 10.1097/mlr.0000000000000822.Peer-Reviewed Original ResearchConceptsBreast cancer careHospital referral regionsNonmetastatic breast cancerBreast cancerCancer careMedicare beneficiariesMedicare expendituresCancer expendituresBetter survivalEnd Results-MedicareRetrospective cohort studyPatients 3 yearsClinical characteristicsCohort studyOverall survivalCancer stagePatient outcomesOutcome measuresReferral regionsOlder womenSignificant associationStage IIBivariate analysisCancerQuintile
2015
The Role of Patient Factors, Cancer Characteristics, and Treatment Patterns in the Cost of Care for Medicare Beneficiaries with Breast Cancer
Xu X, Herrin J, Soulos PR, Saraf A, Roberts KB, Killelea BK, Wang SY, Long JB, Wang R, Ma X, Gross CP. The Role of Patient Factors, Cancer Characteristics, and Treatment Patterns in the Cost of Care for Medicare Beneficiaries with Breast Cancer. Health Services Research 2015, 51: 167-186. PMID: 26119176, PMCID: PMC4722219, DOI: 10.1111/1475-6773.12328.Peer-Reviewed Original ResearchConceptsBreast cancer careHospital referral regionsCancer careMedicare expendituresBreast cancerRadiation therapyTreatment factorsMean Medicare expendituresEnd Results-MedicareSpecific treatment modalitiesContribution of patientCost of careHighest spending quintilePatient factorsTreatment patternsTumor characteristicsCancer characteristicsTreatment modalitiesReferral regionsMedicare beneficiariesQuintilePatientsCancerCareTherapyOlder Women With Localized Breast Cancer: Costs And Survival Rates Increased Across Two Time Periods
Feinstein AJ, Long J, Soulos PR, Ma X, Herrin J, Frick KD, Chagpar AB, Krumholz HM, Yu JB, Ross JS, Gross CP. Older Women With Localized Breast Cancer: Costs And Survival Rates Increased Across Two Time Periods. Health Affairs 2015, 34: 592-600. PMID: 25847641, DOI: 10.1377/hlthaff.2014.1119.Peer-Reviewed Original ResearchConceptsStage II diseaseStage III diseaseCancer-related costsCancer careBreast cancerMedian costSurvival rateEnd Results Program-MedicareFive-year survivalCancer care costsBreast surgerySurvival outcomesImproved outcomesOlder womenRadiation therapyCare costsStage IIDiseaseStudy periodWomenCancerCareSignificant national attentionOutcomesPercent
2013
Variation in Receipt of Radiation Therapy After Breast-conserving Surgery
Feinstein AJ, Soulos PR, Long JB, Herrin J, Roberts KB, Yu JB, Gross CP. Variation in Receipt of Radiation Therapy After Breast-conserving Surgery. Medical Care 2013, 51: 330-338. PMID: 23151590, PMCID: PMC3596448, DOI: 10.1097/mlr.0b013e31827631b0.Peer-Reviewed Original ResearchConceptsUse of RTShort life expectancyRadiation therapyBreast cancerLife expectancyPrimary surgeonStage I breast cancerEarly-stage breast cancerRadiation oncologist densityAdjuvant radiation therapyI breast cancerReceipt of radiationBreast-conserving surgeryImpact of physiciansHierarchical logistic regression modelsLogistic regression modelsLonger life expectancyLE patientsRetrospective cohortLE groupOlder womenPatientsTreatment ratesWomenCancer
2012
Proton Versus Intensity-Modulated Radiotherapy for Prostate Cancer: Patterns of Care and Early Toxicity
Yu JB, Soulos PR, Herrin J, Cramer LD, Potosky AL, Roberts KB, Gross CP. Proton Versus Intensity-Modulated Radiotherapy for Prostate Cancer: Patterns of Care and Early Toxicity. Journal Of The National Cancer Institute 2012, 105: 25-32. PMID: 23243199, PMCID: PMC3536640, DOI: 10.1093/jnci/djs463.Peer-Reviewed Original ResearchConceptsIntensity-modulated radiotherapyProstate cancerMedicare beneficiariesGenitourinary toxicityEarly toxicityProton radiotherapyMultivariable logistic regressionPatterns of careMain outcome measuresType of radiotherapyMedicare reimbursementClinical benefitRetrospective studyPRT patientsOutcome measuresComprehensive cohortPRT useIMRT patientsPatientsSociodemographic characteristicsRadiotherapyCancerLogistic regressionMonthsSignificant differences
2009
Hospice Characteristics and the Disenrollment of Patients with Cancer
Carlson MD, Herrin J, Du Q, Epstein AJ, Cherlin E, Morrison RS, Bradley EH. Hospice Characteristics and the Disenrollment of Patients with Cancer. Health Services Research 2009, 44: 2004-2021. PMID: 19656230, PMCID: PMC2796311, DOI: 10.1111/j.1475-6773.2009.01002.x.Peer-Reviewed Original ResearchConceptsPatient disenrollmentEnd Results-Medicare dataSmaller hospicesTypes of hospicesNew hospiceLong-stay patientsHigh disenrollment ratesMedicare hospice benefitClinical characteristicsDisenrollment ratesPatientsHospice benefitSecondary analysisHospiceDisenrollmentRural statusCancerOrganizational-level barriersStaff mixHospice characteristicsIndependent effectsFiscal intermediariesHigh rateMedicare certificationEpidemiology