2023
Race and Ethnicity and Emergency Department Discharge Against Medical Advice
Tsai J, Janke A, Krumholz H, Khidir H, Venkatesh A. Race and Ethnicity and Emergency Department Discharge Against Medical Advice. JAMA Network Open 2023, 6: e2345437. PMID: 38015503, PMCID: PMC10685883, DOI: 10.1001/jamanetworkopen.2023.45437.Peer-Reviewed Original ResearchConceptsWhite patientsHispanic patientsEmergency departmentCross-sectional studyED visitsBlack patientsDAMA rateMedical adviceMAIN OUTCOMEEthnic disparitiesNationwide Emergency Department SampleNational cross-sectional studyHospital ED visitsEmergency department dischargeHospital-level variationEmergency Department SampleMetropolitan teaching hospitalHealth care resourcesMedian ageGreater morbidityHospital variationUnadjusted analysesTeaching hospitalAdditional adjustmentLower odds
2020
Unscheduled Care Access in the United States-A Tale of Two Emergency Departments
Venkatesh AK, Greenwood-Ericksen MB, Mei H, Rothenberg C, Lin Z, Krumholz HM. Unscheduled Care Access in the United States-A Tale of Two Emergency Departments. The American Journal Of Emergency Medicine 2020, 45: 374-377. PMID: 33143957, PMCID: PMC8076339, DOI: 10.1016/j.ajem.2020.08.095.Peer-Reviewed Original ResearchConceptsHospital referral regionsED visit ratesEmergency departmentCare ratesVisit ratesMedicare Chronic Conditions WarehouseHospital-based emergency departmentsRole of EDsChronic Conditions WarehouseProportion of beneficiariesDartmouth Atlas hospital referral regionHealthcare delivery systemED utilizationED visitsED useUnscheduled careReferral regionsUrban zip codesCare accessMedicare beneficiariesCare needsCare deliveryOffice settingCare capabilitiesDisproportionate barriersNational Trends in Emergency Department Care Processes for Acute Myocardial Infarction in the United States, 2005 to 2015
Pendyal A, Rothenberg C, Scofi JE, Krumholz HM, Safdar B, Dreyer RP, Venkatesh AK. National Trends in Emergency Department Care Processes for Acute Myocardial Infarction in the United States, 2005 to 2015. Journal Of The American Heart Association 2020, 9: e017208. PMID: 33047624, PMCID: PMC7763391, DOI: 10.1161/jaha.120.017208.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionAcute myocardial infarctionMedian ED lengthUS emergency departmentsEmergency departmentED visitsMyocardial infarctionED administrationED lengthAMI careNational Hospital Ambulatory Medical Care SurveyCare processesAmbulatory Medical Care SurveyEvidence-based medicationsNonaspirin antiplatelet agentsEarly invasive strategyAnnual ED visitsRegionalization of careED care processesReal-world trendsAntiplatelet therapyAnnual incidenceAntiplatelet agentsYearly incidenceCare Survey
2019
Association Between Insurance Status and Access to Hospital Care in Emergency Department Disposition
Venkatesh AK, Chou SC, Li SX, Choi J, Ross JS, D’Onofrio G, Krumholz HM, Dharmarajan K. Association Between Insurance Status and Access to Hospital Care in Emergency Department Disposition. JAMA Internal Medicine 2019, 179: 686-693. PMID: 30933243, PMCID: PMC6503571, DOI: 10.1001/jamainternmed.2019.0037.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAsthmaCritical CareCross-Sectional StudiesDatabases, FactualEmergency Service, HospitalFemaleHealth Services AccessibilityHospitalizationHumansInsurance CoverageInsurance, HealthLung DiseasesMaleMedicaidMedically UninsuredMiddle AgedPatient DischargePatient TransferPneumoniaPulmonary Disease, Chronic ObstructiveUnited StatesConceptsNational Emergency Department SampleEmergency Department SampleCommon medical conditionsUninsured patientsCritical care capabilitiesED dischargeED visitsED transfersPulmonary diseaseCare capabilitiesInsurance statusHigher oddsMedicaid beneficiariesMedical conditionsChronic obstructive pulmonary diseaseAcute pulmonary diseaseEmergency department transfersAdult ED visitsHospital admission ratesObstructive pulmonary diseaseEmergency department dispositionPatient insurance statusPatient case mixHospital ownership statusIntensive care capabilities
2017
Identification of Emergency Department Visits in Medicare Administrative Claims: Approaches and Implications
Venkatesh AK, Mei H, Kocher KE, Granovsky M, Obermeyer Z, Spatz E, Rothenberg C, Krumholz H, Lin Z. Identification of Emergency Department Visits in Medicare Administrative Claims: Approaches and Implications. Academic Emergency Medicine 2017, 24: 422-431. PMID: 27864915, PMCID: PMC5905698, DOI: 10.1111/acem.13140.Peer-Reviewed Original ResearchConceptsED visitsEmergency department visitsClaims-based definitionED visitationAdministrative claimsDepartment visitsClaims dataAdministrative claims data setsHealthcare resource utilizationMore ED visitsAcute care practiceAdministrative claims dataQuality improvement interventionsEmergency care researchMedicare administrative claimsClaims data setsED useCritical careED servicesMedicare feeMedicare dataCare practicesService beneficiariesImprovement interventionsProvider definitions
2015
Variation in US Hospital Emergency Department Admission Rates by Clinical Condition
Venkatesh AK, Dai Y, Ross JS, Schuur JD, Capp R, Krumholz HM. Variation in US Hospital Emergency Department Admission Rates by Clinical Condition. Medical Care 2015, 53: 237-244. PMID: 25397965, PMCID: PMC4858175, DOI: 10.1097/mlr.0000000000000261.Peer-Reviewed Original ResearchConceptsEmergency Department Admission RatesED admission ratesAdmission ratesClinical conditionsMood disordersChronic obstructive pulmonary diseaseNational Emergency Department SampleAdult ED visitsNonspecific chest painObstructive pulmonary diseaseSoft tissue infectionsUrinary tract infectionEmergency Department SampleClinical Classification SoftwareCross-sectional analysisChest painED visitsTract infectionsPulmonary diseaseSpearman correlation coefficientTissue infectionsHospitalization ratesUS hospitalsCondition-specific variationsHospital correlation
2014
Hospital variation in risk-standardized hospital admission rates from US EDs among adults
Capp R, Ross JS, Fox JP, Wang Y, Desai MM, Venkatesh AK, Krumholz HM. Hospital variation in risk-standardized hospital admission rates from US EDs among adults. The American Journal Of Emergency Medicine 2014, 32: 837-843. PMID: 24881514, DOI: 10.1016/j.ajem.2014.03.033.Peer-Reviewed Original ResearchConceptsHospital admission ratesEmergency departmentAdmission ratesClinical characteristicsED visitsHospital factorsClinical factorsAdult ED visitsUS emergency departmentsHospital teaching statusCross-sectional analysisPatient characteristicsHospital admissionHospital variationPatientsTeaching statusHospitalED dataVisitsRepresentative sampleAdultsRural locationsAdmissionFactorsNational variations
2013
Hospital-Based, Acute Care Use Among Patients Within 30 Days of Discharge After Coronary Artery Bypass Surgery
Fox JP, Suter LG, Wang K, Wang Y, Krumholz HM, Ross JS. Hospital-Based, Acute Care Use Among Patients Within 30 Days of Discharge After Coronary Artery Bypass Surgery. The Annals Of Thoracic Surgery 2013, 96: 96-104. PMID: 23702228, PMCID: PMC3758868, DOI: 10.1016/j.athoracsur.2013.03.091.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCaliforniaCoronary Artery BypassCoronary Artery DiseaseEmergency Service, HospitalFemaleFollow-Up StudiesHumansIntensive Care UnitsLength of StayLinear ModelsMaleMiddle AgedMorbidityPatient DischargePatient ReadmissionPostoperative ComplicationsPostoperative PeriodPrognosisRecurrenceRetrospective StudiesRisk FactorsSurvival RateTime FactorsYoung AdultConceptsDays of dischargeAcute care needsCABG surgeryED visit ratesED visitsHospital readmissionReadmission ratesCare needsCoronary artery bypass graft surgeryVisit ratesArtery bypass graft surgeryCoronary artery bypass surgeryRisk-standardized readmission ratesAcute care ratesHospital 30 daysBypass graft surgeryAcute care useArtery bypass surgeryCongestive heart failureEmergency department visitsEmergency Department DatabasesChest discomfortGraft surgeryBypass surgeryHospital volume
2011
National Trends in Use of Computed Tomography in the Emergency Department
Kocher KE, Meurer WJ, Fazel R, Scott PA, Krumholz HM, Nallamothu BK. National Trends in Use of Computed Tomography in the Emergency Department. Annals Of Emergency Medicine 2011, 58: 452-462.e3. PMID: 21835499, DOI: 10.1016/j.annemergmed.2011.05.020.Peer-Reviewed Original ResearchConceptsEmergency departmentCT useComputed tomographyED visitsRisk ratioNational Hospital Ambulatory Medical Care SurveyAmbulatory Medical Care SurveyShortness of breathLikelihood of admissionSpecific emergency departmentLarge nationwide surveyAbdominal painChest painFlank painAcute illnessED encountersRetrospective studyCare SurveyCommon complaintPatient visitsMultivariable modelingCT scanMAIN OUTCOMEED servicesPain