2024
Real-world evaluation of an algorithmic machine-learning-guided testing approach in stable chest pain: a multinational, multicohort study
Oikonomou E, Aminorroaya A, Dhingra L, Partridge C, Velazquez E, Desai N, Krumholz H, Miller E, Khera R. Real-world evaluation of an algorithmic machine-learning-guided testing approach in stable chest pain: a multinational, multicohort study. European Heart Journal - Digital Health 2024, 5: 303-313. PMID: 38774380, PMCID: PMC11104476, DOI: 10.1093/ehjdh/ztae023.Peer-Reviewed Original ResearchRisk of acute myocardial infarctionAssociated with lower oddsHospital health systemCoronary artery diseaseCardiac testingRisk of adverse outcomesUK BiobankHealth systemProvider-drivenLower oddsAssociated with better outcomesAcute myocardial infarctionBlack raceStable chest painFemale sexReal world evaluationDiabetes historyMulticohort studyFunction testsSuspected coronary artery diseaseYounger ageRisk profileAdverse outcomesMultinational cohortPost hoc analysis
2018
Racial Disparities in Patient Characteristics and Survival After Acute Myocardial Infarction
Graham GN, Jones PG, Chan PS, Arnold SV, Krumholz HM, Spertus JA. Racial Disparities in Patient Characteristics and Survival After Acute Myocardial Infarction. JAMA Network Open 2018, 1: e184240. PMID: 30646346, PMCID: PMC6324589, DOI: 10.1001/jamanetworkopen.2018.4240.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionWhite patientsBlack patientsMortality rate differencesMortality ratePatient characteristicsMyocardial infarctionPropensity scoreAcute Myocardial Infarction Patients' Health Status (TRIUMPH) registrySelf-identified black patientsObserved survival differencesNational Death IndexTime of admissionLower propensity scoreProspective registryClinical characteristicsCohort studyDeath IndexHighest quintileBlack raceC-statisticSurvival differencesWorse outcomesMAIN OUTCOMEPatients
2016
Long-Term Risk for Device-Related Complications and Reoperations After Implantable Cardioverter-Defibrillator Implantation: An Observational Cohort Study.
Ranasinghe I, Parzynski CS, Freeman JV, Dreyer RP, Ross JS, Akar JG, Krumholz HM, Curtis JP. Long-Term Risk for Device-Related Complications and Reoperations After Implantable Cardioverter-Defibrillator Implantation: An Observational Cohort Study. Annals Of Internal Medicine 2016, 165: 20-29. PMID: 27135392, DOI: 10.7326/m15-2732.Peer-Reviewed Original ResearchICD-related complicationsNational Cardiovascular Data RegistryObservational cohort studyDevice-related complicationsICD implantationLong-term riskCohort studyMedicare feeNational Cardiovascular Data Registry ICD RegistryImplantable cardioverter defibrillator implantationImplantable cardioverter-defibrillator placementCardioverter-defibrillator implantationService claims dataCRT-D devicesSingle-chamber devicesCumulative incidenceNonfatal outcomesICD RegistryService patientsBlack raceFemale sexReoperationAmerican CollegeClaims dataComplications
2015
Life Expectancy and Years of Potential Life Lost After Acute Myocardial Infarction by Sex and Race A Cohort-Based Study of Medicare Beneficiaries
Bucholz EM, Normand SL, Wang Y, Ma S, Lin H, Krumholz HM. Life Expectancy and Years of Potential Life Lost After Acute Myocardial Infarction by Sex and Race A Cohort-Based Study of Medicare Beneficiaries. Journal Of The American College Of Cardiology 2015, 66: 645-655. PMID: 26248991, PMCID: PMC5459400, DOI: 10.1016/j.jacc.2015.06.022.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionWhite patientsBlack patientsLife expectancyMyocardial infarctionMedicare beneficiariesCox proportional hazards regressionPotential lifeProspective cohort studyCohort-based studyProportional hazards regressionCooperative Cardiovascular ProjectBurden of diseaseLong-term survivalCohort studyClinical presentationHazards regressionBlack raceSurvival advantageGeneral populationPatientsAverage ageRace differencesLife expectancy estimatesYPLL
2010
Racial Disparities in Health Literacy and Access to Care Among Patients With Heart Failure
Chaudhry SI, Herrin J, Phillips C, Butler J, Mukerjhee S, Murillo J, Onwuanyi A, Seto TB, Spertus J, Krumholz HM. Racial Disparities in Health Literacy and Access to Care Among Patients With Heart Failure. Journal Of Cardiac Failure 2010, 17: 122-127. PMID: 21300301, PMCID: PMC3053061, DOI: 10.1016/j.cardfail.2010.09.016.Peer-Reviewed Original ResearchConceptsHeart failure patientsHealth literacyFailure patientsHeart failureInsurance statusWorse health literacyOutpatient medical careRacial differencesImportant racial differencesNoncardiac comorbiditiesUnadjusted analysesBlack raceCare existMedical homePatientsMedical careRacial disparitiesSocioeconomic statusStrong associationPotential mediatorsHealth carePoor accessCareSocial supportStatus
2008
Delayed Time to Defibrillation after In-Hospital Cardiac Arrest
S. C, M. K, Graham N, K. N, Investigators T. Delayed Time to Defibrillation after In-Hospital Cardiac Arrest. New England Journal Of Medicine 2008, 358: 9-17. PMID: 18172170, DOI: 10.1056/nejmoa0706467.Peer-Reviewed Original ResearchMeSH KeywordsAgedComorbidityElectric CountershockFemaleHeart ArrestHeart FailureHospital Bed CapacityHospital MortalityHospitalizationHumansLogistic ModelsMaleMiddle AgedMultivariate AnalysisMyocardial InfarctionRetrospective StudiesSurvival AnalysisTachycardia, VentricularTime FactorsVentricular FibrillationConceptsHospital cardiac arrestCardiac arrestHospital dischargeIn-Hospital Cardiac ArrestOverall median timePulseless ventricular tachycardiaMultivariable logistic regressionLower ratesMedian timeVentricular arrhythmiasBlack raceHospital characteristicsNational registryVentricular tachycardiaCardiopulmonary resuscitationExpert guidelinesVentricular fibrillationHospital unitsLogistic regressionPatientsDefibrillationSurvivalArrestHospitalMinutes of delay
2005
The impact of socioeconomic status and race on trial participation for older women with breast cancer
Gross CP, Filardo G, Mayne ST, Krumholz HM. The impact of socioeconomic status and race on trial participation for older women with breast cancer. Cancer 2005, 103: 483-491. PMID: 15597407, DOI: 10.1002/cncr.20792.Peer-Reviewed Original ResearchMeSH KeywordsAgedAsianBlack or African AmericanBreast NeoplasmsCase-Control StudiesClinical Trials as TopicFemaleHispanic or LatinoHumansLogistic ModelsMedicaidMultivariate AnalysisNational Institutes of Health (U.S.)Odds RatioPatient SelectionPovertySEER ProgramUnemploymentUnited StatesWhite PeopleConceptsBreast cancer trialsTrial participationOlder womenBreast cancerSocioeconomic statusMedicaid insuranceTrial enrollmentCancer patientsCancer trialsMultivariable logistic regression modelBreast cancer patientsMedicaid insurance coverageAssociation of SESHigh-poverty zip codesCase-control studyPopulation-based sampleLow socioeconomic statusLogistic regression modelsImpact of SESWhite patientsBlack patientsSEER areasBlack raceElderly womenTrial participants
2002
Risk and Predictors of Stroke After Myocardial Infarction Among the Elderly
Lichtman JH, Krumholz HM, Wang Y, Radford MJ, Brass LM. Risk and Predictors of Stroke After Myocardial Infarction Among the Elderly. Circulation 2002, 105: 1082-1087. PMID: 11877359, DOI: 10.1161/hc0902.104708.Peer-Reviewed Original ResearchConceptsMonths of dischargeRisk of strokeAcute myocardial infarctionMyocardial infarctionIschemic strokeOlder patientsStroke admission ratesPatients 75 yearsPeripheral vascular diseasePredictors of strokeRisk stratification scoresRate of admissionSimple clinical factorsPrior strokeStroke admissionsClinical factorsHospital admissionIndependent predictorsStratification scoresAtrial fibrillationBlack racePrincipal diagnosisVascular diseaseAdmission ratesMedicare patients
2000
Intracranial Hemorrhage Associated With Thrombolytic Therapy for Elderly Patients With Acute Myocardial Infarction
Brass L, Lichtman J, Wang Y, Gurwitz J, Radford M, Krumholz H. Intracranial Hemorrhage Associated With Thrombolytic Therapy for Elderly Patients With Acute Myocardial Infarction. Stroke 2000, 31: 1802-1811. PMID: 10926938, DOI: 10.1161/01.str.31.8.1802.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionThrombolytic therapyIntracranial hemorrhageMyocardial infarctionElderly patientsIntracranial Hemorrhage AssociatedRetrospective cohort studyRisk stratification scaleMain outcome measuresAcute care hospitalsTissue plasminogen activatorExcessive anticoagulationPrior strokeCohort studyOlder patientsBlood pressureHemorrhage AssociatedIndependent predictorsMedical chartsSerious complicationsMedian weightAlternate therapyBlack racePrincipal diagnosisMedicare patients