2022
Perioperative magnetic resonance imaging in breast cancer care: Distinct adoption trajectories among physician patient-sharing networks
Xu X, Soulos PR, Herrin J, Wang SY, Pollack CE, Killelea BK, Forman HP, Gross CP. Perioperative magnetic resonance imaging in breast cancer care: Distinct adoption trajectories among physician patient-sharing networks. PLOS ONE 2022, 17: e0265188. PMID: 35290417, PMCID: PMC8923453, DOI: 10.1371/journal.pone.0265188.Peer-Reviewed Original ResearchConceptsPhysician patient-sharing networksPerioperative magnetic resonance imagingClinical risk factorsMagnetic resonance imagingPatient clinical risk factorsPatient-sharing networksBreast cancer careRisk-adjusted ratesMastectomy usePhysician networksCancer careRisk factorsEnd Results-Medicare databaseCharacteristics of patientsProportion of patientsBreast cancer surgeryComposition of patientsMRI adoptionDistinct trajectoriesMore patientsCancer surgeryClinical outcomesCancer specialistsMRI usePatients
2021
Receptivity to a Nurse-Led Symptom Management Intervention Among Highly Symptomatic Patients With Cancer
Wintheiser GA, Ruddy KJ, Herrin J, Rahman PA, Pachman DR, Leppin AL, Rutten LJF, Lee MK, Griffin JM, Tofthagen C, Chlan LL, Ridgeway JL, Mitchell SA, Cheville AL. Receptivity to a Nurse-Led Symptom Management Intervention Among Highly Symptomatic Patients With Cancer. Journal Of The National Cancer Institute 2021, 114: 458-466. PMID: 34508602, PMCID: PMC8902324, DOI: 10.1093/jnci/djab172.Peer-Reviewed Original ResearchConceptsSymptomatic patientsSevere symptomsTertiary care centerStepped-wedge trialSymptom management interventionsPhone callsPatient characteristicsSevere painSymptom burdenOncology patientsPatients' qualityPhysical functionCancer careSleep disturbancesSymptom assessmentCCM interventionCare centerPhone consultationsPatientsPatient receptivityCare managersEmotional distressPainInterventionSymptoms
2020
Evaluation of Cancer Care After Medicaid Expansion Under the Affordable Care Act
Salazar MC, Canavan ME, Walters SL, Herrin J, Schwartz JL, Leapman M, Boffa DJ. Evaluation of Cancer Care After Medicaid Expansion Under the Affordable Care Act. JAMA Network Open 2020, 3: e2017544. PMID: 32990734, PMCID: PMC7525361, DOI: 10.1001/jamanetworkopen.2020.17544.Peer-Reviewed Original ResearchSurvival After Cancer Treatment at Top-Ranked US Cancer Hospitals vs Affiliates of Top-Ranked Cancer Hospitals
Boffa DJ, Mallin K, Herrin J, Resio B, Salazar MC, Palis B, Facktor M, McCabe R, Nelson H, Shulman LN. Survival After Cancer Treatment at Top-Ranked US Cancer Hospitals vs Affiliates of Top-Ranked Cancer Hospitals. JAMA Network Open 2020, 3: e203942. PMID: 32453382, PMCID: PMC7251445, DOI: 10.1001/jamanetworkopen.2020.3942.Peer-Reviewed Original ResearchConceptsLong-term survivalCancer HospitalSurgical treatmentShort-term survivalComplex cancer treatmentAffiliate hospitalsCancer treatmentCancer careAdjusted long-term survivalNational Cancer DatabaseAnnual surgical volumeComplex cancer careIndividuals 18 yearsComplex surgical proceduresPerioperative mortalityCohort studyAffiliated HospitalPooled analysisBladder cancerCancer DatabasePatient outcomesSurgical volumeSurgical proceduresMAIN OUTCOMESurvival advantage
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 rateMetastasisAssociation Between Degrees of Separation in Physician Networks and Surgeons’ Use of Perioperative Breast Magnetic Resonance Imaging
Shi Y, Pollack CE, Soulos PR, Herrin J, Christakis NA, Xu X, Gross CP. Association Between Degrees of Separation in Physician Networks and Surgeons’ Use of Perioperative Breast Magnetic Resonance Imaging. Medical Care 2019, 57: 460-467. PMID: 31008899, PMCID: PMC6522278, DOI: 10.1097/mlr.0000000000001123.Peer-Reviewed Original ResearchConceptsBreast magnetic resonance imagingMagnetic resonance imagingPerioperative magnetic resonance imagingMRI useResonance imagingSurgeons' useBreast cancer carePatient-sharing networksPractice of surgeonsPairs of surgeonsUnproven benefitRetrospective studyPhysician pairsCancer carePractice patternsBreast cancerMRI utilizationMedicare dataSurgical colleaguesPatientsSurgeonsStudy periodPhysician networksCareAssociationAbandonment trajectories of conventionally fractionated adjuvant radiotherapy in breast cancer care.
Xu X, Soulos P, Herrin J, Wang S, Pollack C, Evans S, Gross C, Yu J. Abandonment trajectories of conventionally fractionated adjuvant radiotherapy in breast cancer care. Journal Of Clinical Oncology 2019, 37: 531-531. DOI: 10.1200/jco.2019.37.15_suppl.531.Peer-Reviewed Original ResearchPhysician peer groupsBreast cancer careAdjuvant radiotherapyCancer careHigher useNational Medicare claimsPatient risk factorsDistinct trajectoriesYears of ageLow useDifferent baseline levelsRisk-adjusted ratesPatient cohortRisk factorsBreast cancerCost implicationsMedicare claimsBaseline levelsRadiotherapyMedicare perspectiveCFRTCurve analysisPhysiciansPatientsLatent growth curve analysisDifferential Safety Between Top-Ranked Cancer Hospitals and Their Affiliates for Complex Cancer Surgery
Hoag JR, Resio BJ, Monsalve AF, Chiu AS, Brown LB, Herrin J, Blasberg JD, Kim AW, Boffa DJ. Differential Safety Between Top-Ranked Cancer Hospitals and Their Affiliates for Complex Cancer Surgery. JAMA Network Open 2019, 2: e191912. PMID: 30977848, PMCID: PMC6481444, DOI: 10.1001/jamanetworkopen.2019.1912.Peer-Reviewed Original ResearchConceptsComplex cancer surgeryCancer surgeryCancer HospitalMedicare beneficiariesCancer NetworkRelative safetyStandardized mortality ratioComplex cancer careCross-sectional studyTop-ranked hospitalsMedicaid Services 100Hierarchical logistic regressionPerioperative mortalityAffiliated HospitalCancer careMortality ratioOdds ratioMAIN OUTCOMESurgeryHospitalReview filesDifferential safetyLogistic regressionMortalityMedicare providers
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 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
Use of New Treatment Modalities for Non-small Cell Lung Cancer Care in the Medicare Population
Vest MT, Herrin J, Soulos PR, Decker RH, Tanoue L, Michaud G, Kim AW, Detterbeck F, Morgensztern D, Gross CP. Use of New Treatment Modalities for Non-small Cell Lung Cancer Care in the Medicare Population. CHEST Journal 2013, 143: 429-435. PMID: 23187634, PMCID: PMC3566996, DOI: 10.1378/chest.12-1149.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerStage I non-small cell lung cancerVideo-assisted thoracoscopic surgeryProportion of patientsOlder patientsCancer careNon-small cell lung cancer careEarly-stage non-small cell lung cancerStage non-small cell lung cancerEnd Results-Medicare databaseLung cancer careCell lung cancerCurative local therapyNew treatment modalitiesOverall useNew surgical techniqueType of treatmentNew radiation modalitiesRadiation therapy modalitiesSurgical resectionCurative therapyLocal therapyMore patientsThoracoscopic surgeryMean age
2012
Assessing the Impact of a Cooperative Group Trial on Breast Cancer Care in the Medicare Population
Soulos PR, Yu JB, Roberts KB, Raldow AC, Herrin J, Long JB, Gross CP. Assessing the Impact of a Cooperative Group Trial on Breast Cancer Care in the Medicare Population. Journal Of Clinical Oncology 2012, 30: 1601-1607. PMID: 22393088, PMCID: PMC3383112, DOI: 10.1200/jco.2011.39.4890.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overBreast NeoplasmsCombined Modality TherapyDisease-Free SurvivalFemaleHumansLife ExpectancyMastectomy, SegmentalMedicareNeoplasm InvasivenessNeoplasm StagingPrognosisRadiotherapy, AdjuvantRisk AssessmentSEER ProgramSurvival AnalysisTreatment OutcomeUnited StatesConceptsUse of RTAdjuvant radiation therapyRadiation therapyOlder womenRT useLife expectancyBreast cancerMedicare populationEnd Results-Medicare dataStage I breast cancerStrata of ageCooperative group trialsI breast cancerBreast cancer careStrata of patientsHealth system characteristicsLog-binomial regressionShort life expectancySample of womenTreatment guidelinesCancer careInclusion criteriaGroup trialsMedicare beneficiariesClinical practice