2019
Income disparities in needle biopsy patients prior to breast cancer surgery across physician peer groups
Killelea BK, Herrin J, Soulos PR, Pollack CE, Forman HP, Yu J, Xu X, Tannenbaum S, Wang SY, Gross CP. Income disparities in needle biopsy patients prior to breast cancer surgery across physician peer groups. Breast Cancer 2019, 27: 381-388. PMID: 31792804, PMCID: PMC7512133, DOI: 10.1007/s12282-019-01028-4.Peer-Reviewed Original ResearchConceptsPhysician peer groupsLow-income patientsNeedle biopsyOdds ratioHigh-income patientsBreast cancer surgeryMethodsThe SurveillanceCancer surgeryIncome patientsMedicare databaseBiopsy patientsMedicare beneficiariesPatientsBiopsyLow incomeGroupDisparitiesReceiptEnd resultHigher incomeSurgeryPeer groupEpidemiologyFurther workGroup-level effects
2018
Surgeon 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 evidencePhysicians
2017
The Impact of Social Contagion on Physician Adoption of Advanced Imaging Tests in Breast Cancer
Pollack CE, Soulos PR, Herrin J, Xu X, Christakis NA, Forman HP, Yu JB, Killelea BK, Wang SY, Gross CP. The Impact of Social Contagion on Physician Adoption of Advanced Imaging Tests in Breast Cancer. Journal Of The National Cancer Institute 2017, 109: djw330. PMID: 28376191, PMCID: PMC6059114, DOI: 10.1093/jnci/djw330.Peer-Reviewed Original ResearchConceptsMagnetic resonance imagingBaseline usePositron emission tomography scanEnd Results-MedicareEmission tomography scanBreast cancer practiceImaging modalitiesAdvanced imaging testsHierarchical logistic regression modelsLogistic regression modelsPatient characteristicsUnproven benefitCancer practiceMRI/PETTomography scanBreast cancerMRI useImaging testsClinical practicePET useResonance imagingPET imagingPhysician peersPhysician adoptionBaseline period