2018
Association between Oncologist Ownership of Imaging Facilities and Utilization: An Analysis of Positron-Emission Tomography (PET) Use in Lymphoma Settings with Variable PET Utility
Huntington S, Zhu W, Hoag J, Wang R, Zeidan A, Giri S, Podoltsev N, Gore S, Ma X, Gross C, Davidoff A. Association between Oncologist Ownership of Imaging Facilities and Utilization: An Analysis of Positron-Emission Tomography (PET) Use in Lymphoma Settings with Variable PET Utility. Blood 2018, 132: 3538. DOI: 10.1182/blood-2018-99-115140.Peer-Reviewed Original ResearchChronic lymphocytic leukemiaConsensus guidelinesFollicular lymphomaPET scansClinical utilityMedicare beneficiariesSetting of CLLEnd Results-Medicare dataPopulation-based cohort studyLarge B-cell lymphomaLow-value imagingLymphoma-directed therapyFirst-line therapyPatients' sociodemographic characteristicsElixhauser Comorbidity IndexPositron emission tomography useYears of treatmentLow clinical utilityLymphoma settingPet ownershipB-cell lymphomaHierarchical multivariable modelUse of PETTreating oncologistComorbidity indexPhysician 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
Physician volume and discontinuation of rituximab during lymphoma treatment.
Huntington S, Long J, Hoag J, Wang R, Zeidan A, Giri S, Gore S, Ma X, Gross C, Davidoff A. Physician volume and discontinuation of rituximab during lymphoma treatment. Journal Of Clinical Oncology 2017, 35: 6593-6593. DOI: 10.1200/jco.2017.35.15_suppl.6593.Peer-Reviewed Original ResearchNon-Hodgkin lymphomaEarly discontinuationRituximab discontinuationPhysician volumeProvider volumeEnd Results-Medicare dataB-cell non-Hodgkin lymphomaCell non-Hodgkin lymphomaCox proportional hazards modelDiscontinuation of rituximabSevere infusion reactionsRetrospective cohort studyImpact of discontinuationDays of initiationProportional hazards modelDose-dependent mannerRituximab cyclesRituximab initiationInfusion reactionsOverall survivalCohort studyPrimary outcomeSystemic treatmentLymphoma treatmentRelative riskHypomethylating agent (HMA) therapy use and survival in older patients with higher risk myelodysplastic syndromes (HR-MDS) in the United States (USA): A large population-based study.
Zeidan A, Hu X, Long J, Wang R, Huntington S, Podoltsev N, Giri S, Stahl M, Gore S, Ma X, Davidoff A. Hypomethylating agent (HMA) therapy use and survival in older patients with higher risk myelodysplastic syndromes (HR-MDS) in the United States (USA): A large population-based study. Journal Of Clinical Oncology 2017, 35: 7057-7057. DOI: 10.1200/jco.2017.35.15_suppl.7057.Peer-Reviewed Original ResearchOverall survivalHR-MDSDiagnosis yearUS population-based analysisEnd Results-Medicare dataHigh-risk myelodysplastic syndromeLarge population-based studyConventional care regimensMedian overall survivalRetrospective cohort studyRisk myelodysplastic syndromesPopulation-based studyRecent registry dataPopulation-based analysisUse of decitabineAZA-001Unselected natureCohort studyConventional careExcess blastsOlder patientsTherapy usePatient selectionSurvival prolongationCare regimens