Featured Publications
Effect of Physician Gender and Race on Simulated Patients’ Ratings and Confidence in Their Physicians
Solnick RE, Peyton K, Kraft-Todd G, Safdar B. Effect of Physician Gender and Race on Simulated Patients’ Ratings and Confidence in Their Physicians. JAMA Network Open 2020, 3: e1920511. PMID: 32083686, PMCID: PMC7043197, DOI: 10.1001/jamanetworkopen.2019.20511.Peer-Reviewed Original ResearchConceptsWhite male physiciansPatient satisfactionPhysician genderMale physiciansHistory of cancerAbdominal surgical proceduresEmergency department physiciansLower patient satisfactionSignificant differencesOnline symptom checkersBlack physiciansComposite outcomeControl physiciansPhysician diagnosisPatient evaluationDepartment physiciansPatient ratingsSurgical proceduresMAIN OUTCOMEPhysician confidenceClinical diagnosisPhysiciansWhite womenDiagnosisWhite men
2024
Effectiveness of Original Monovalent and Bivalent COVID‐19 Vaccines Against COVID‐19‐Associated Hospitalization and Severe In‐Hospital Outcomes Among Adults in the United States, September 2022–August 2023
DeCuir J, Surie D, Zhu Y, Lauring A, Gaglani M, McNeal T, Ghamande S, Peltan I, Brown S, Ginde A, Steinwand A, Mohr N, Gibbs K, Hager D, Ali H, Frosch A, Gong M, Mohamed A, Johnson N, Srinivasan V, Steingrub J, Khan A, Busse L, Duggal A, Wilson J, Qadir N, Chang S, Mallow C, Kwon J, Exline M, Shapiro N, Columbus C, Vaughn I, Ramesh M, Safdar B, Mosier J, Casey J, Talbot H, Rice T, Halasa N, Chappell J, Grijalva C, Baughman A, Womack K, Rhoads J, Swan S, Johnson C, Lewis N, Ellington S, Dawood F, McMorrow M, Self W, Network F. Effectiveness of Original Monovalent and Bivalent COVID‐19 Vaccines Against COVID‐19‐Associated Hospitalization and Severe In‐Hospital Outcomes Among Adults in the United States, September 2022–August 2023. Influenza And Other Respiratory Viruses 2024, 18: e70027. PMID: 39496339, PMCID: PMC11534416, DOI: 10.1111/irv.70027.Peer-Reviewed Original ResearchConceptsCOVID-19-associated hospitalizationIn-hospital outcomesVaccine effectivenessMonovalent dosesAbsolute VETest-negative case-control designInvasive mechanical ventilationCOVID-19 vaccineMultivariate logistic regressionSevere COVID-19Case patientsCase-control designControl patientsMechanical ventilationUnvaccinated patientsPatientsMonovalent vaccineCOVID-19-like illnessDoseCOVID-19 vaccine effectivenessBivalent vaccineLogistic regressionAdmission dateVaccineHospital
2021
Use of peripheral arterial tonometry in detection of abnormal coronary flow reserve
Gaeta M, Nowroozpoor A, Dziura J, D'Onofrio G, Sinusas AJ, Safdar B. Use of peripheral arterial tonometry in detection of abnormal coronary flow reserve. Microvascular Research 2021, 138: 104223. PMID: 34256085, PMCID: PMC10227886, DOI: 10.1016/j.mvr.2021.104223.Peer-Reviewed Original ResearchConceptsLower coronary flow reserveCoronary flow reserveCoronary microvascular dysfunctionCoronary artery diseaseClinical screening toolPET/CTFlow reserveRubidium-82 positron emission tomography/Large vessel coronary artery diseaseNormal coronary flow reserveTraditional CAD risk factorsVessel coronary artery diseaseAbnormal coronary flow reservePositron emission tomography/Screening toolPeripheral arterial tonometryCAD risk factorsEmission tomography/Presence of calcificationLower RHIHyperemia indexArterial tonometryMicrovascular dysfunctionArtery diseaseAugmentation index
2014
Differential Survival for Men and Women from Out‐of‐hospital Cardiac Arrest Varies by Age: Results from the OPALS Study
Safdar B, Stolz U, Stiell IG, Cone DC, Bobrow BJ, deBoehr M, Dreyer J, Maloney J, Spaite DW. Differential Survival for Men and Women from Out‐of‐hospital Cardiac Arrest Varies by Age: Results from the OPALS Study. Academic Emergency Medicine 2014, 21: 1503-1511. PMID: 25491713, DOI: 10.1111/acem.12540.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overArrhythmias, CardiacCardiopulmonary ResuscitationElectric CountershockEmergency Medical ServicesFemaleGender IdentityHumansMaleMiddle AgedOdds RatioOntarioOut-of-Hospital Cardiac ArrestRegression AnalysisRisk FactorsSex CharacteristicsSex FactorsSurvival AnalysisSurvival RateTime FactorsConceptsHospital dischargeEmergency medical servicesProbability of survivalOHCA patientsOPAL studyInitial ventricular fibrillation/ventricular tachycardia rhythmMultivariable logistic regression modelAge 47 yearsAge 65 yearsHospital cardiac arrestSex-stratified regression modelsPrimary risk factorRegression modelsLogistic regression modelsFractional polynomialsOHCA populationHospital admissionSpontaneous circulationAdult OHCACardiac arrestRapid defibrillationLife Support ProgramRisk factorsFavorable outcomeOHCA survivalElevated CK-MB with a Normal Troponin Does Not Predict 30-Day Adverse Cardiac Events in Emergency Department Chest Pain Observation Unit Patients
Safdar B, Bezek SK, Sinusas AJ, Russell RR, Klein MR, Dziura JD, D’onofrio G. Elevated CK-MB with a Normal Troponin Does Not Predict 30-Day Adverse Cardiac Events in Emergency Department Chest Pain Observation Unit Patients. Critical Pathways In Cardiology A Journal Of Evidence-Based Medicine 2014, 13: 14-19. PMID: 24526146, DOI: 10.1097/hpc.0000000000000001.Peer-Reviewed Original ResearchConceptsAdverse cardiac eventsCPU patientsNormal troponinAdverse eventsCardiac eventsMultiple logistic regression modelComposite adverse eventsElevated creatinine kinaseObservation unit patientsSerial troponin testingStandardized chart reviewRetrospective cohort studyAcute coronary syndromeNational Death RegistryCoronary artery diseaseLogistic regression modelsPositive troponinPrior CADRenal insufficientCoronary syndromeHemodynamic instabilityChart reviewCohort studyDeath RegistryIschemic electrocardiogram
2009
Improvements in Time to Reperfusion
Rao V, Safdar B, Parkosewich J, Lee LV, D'Onofrio G, Foody JM. Improvements in Time to Reperfusion. Critical Pathways In Cardiology A Journal Of Evidence-Based Medicine 2009, 8: 38-42. PMID: 19258837, DOI: 10.1097/hpc.0b013e318194e443.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngioplasty, Balloon, CoronaryCohort StudiesElectrocardiographyEmergency Service, HospitalEmergency TreatmentFemaleHospitals, TeachingHumansIncidenceMaleMiddle AgedMyocardial InfarctionPrognosisRetrospective StudiesRisk AssessmentSeverity of Illness IndexSex FactorsSurvival AnalysisTime FactorsTreatment OutcomeUrban HealthConceptsPrimary percutaneous coronary interventionST-elevation myocardial infarctionYale-New Haven HospitalPrimary PCIChart-abstracted dataPercutaneous coronary interventionUrban teaching hospitalQuality of carePhysician-level interventionsSingle-site studyChest painCoronary interventionHospital-wide systemPhysician awarenessEmergency departmentMyocardial infarctionHeart diseaseSTEMI careImproved outcomesTeaching hospitalEarly presentationReperfusionTimely managementClinical initiativesWomen