1999
Early beta-blocker therapy for acute myocardial infarction in elderly patients.
Krumholz H, Radford M, Wang Y, Chen J, Marciniak T. Early beta-blocker therapy for acute myocardial infarction in elderly patients. Annals Of Internal Medicine 1999, 131: 648-54. PMID: 10577326, DOI: 10.7326/0003-4819-131-9-199911020-00003.Peer-Reviewed Original ResearchConceptsEarly beta-blocker therapyBeta-blocker therapyAcute myocardial infarctionMyocardial infarctionElderly patientsEarly useHospital mortality ratePatients 65 yearsMedical chart reviewAcute care hospitalsYears of ageHospital mortalityHospital deathChart reviewPatient demographicsCare hospitalClinical factorsTreatment characteristicsEarly treatmentBaseline differencesObservational studyHigh riskMedicare beneficiariesMortality ratePatientsComparing AMI Mortality Among Hospitals in Patients 65 Years of Age and Older
Krumholz H, Chen J, Wang Y, Radford M, Chen Y, Marciniak T. Comparing AMI Mortality Among Hospitals in Patients 65 Years of Age and Older. Circulation 1999, 99: 2986-2992. PMID: 10368115, DOI: 10.1161/01.cir.99.23.2986.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionWhite blood cell countPatients 65 yearsSystolic blood pressureCongestive heart failureMedical chart reviewReceiver-operating characteristic curveBlood cell countRisk-adjusted outcomesYears of ageAdministrative billing codesRisk-adjustment modelsHospital outcomesSerum creatinineChart reviewDerivation cohortHeart failurePatient characteristicsBlood pressureCardiac arrestValidation cohortCandidate predictor variablesAMI mortalityBilling codes
1998
Trends in costs of percutaneous transluminal coronary angioplasty.
Heiat A, Mattera JA, Henry GA, Chen YT, Krumholz HM. Trends in costs of percutaneous transluminal coronary angioplasty. The American Journal Of Managed Care 1998, 4: 1667-74. PMID: 10339099.Peer-Reviewed Original ResearchConceptsPercutaneous transluminal coronary angioplastyTransluminal coronary angioplastyCoronary angioplastyClinical outcomesElective percutaneous transluminal coronary angioplastyYale-New Haven HospitalCatheterization laboratory costsMedical chart reviewGroup of patientsTotal hospital costsLength of stayHospital cost accounting systemChart reviewClinical characteristicsConsecutive patientsAngiographic featuresHospital recordsContrast volumeRetrospective studyPatient populationHospital costsLesion characteristicsStent useCatheterization laboratoryPatient profilesDepression and Risk of Coronary Heart Disease in Elderly Men and Women: New Haven EPESE, 1982-1991
Mendes de Leon CF, Krumholz HM, Seeman TS, Vaccarino V, Williams CS, Kasl SV, Berkman LF. Depression and Risk of Coronary Heart Disease in Elderly Men and Women: New Haven EPESE, 1982-1991. JAMA Internal Medicine 1998, 158: 2341-2348. PMID: 9827785, DOI: 10.1001/archinte.158.21.2341.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAge FactorsAgedCause of DeathCohort StudiesConnecticutCoronary DiseaseDeath CertificatesDepressionFemaleForecastingHospitalizationHumansIncidenceInterviews as TopicMaleMedical AuditMyocardial InfarctionOutcome Assessment, Health CarePatient AdmissionReproducibility of ResultsRisk FactorsSex FactorsSurvival RateConceptsCoronary heart diseaseCHD risk factorsDepressive symptomsRisk factorsCHD outcomesHeart diseaseAge-adjusted relative riskImpaired physical functionIncident coronary diseasePhysical function impairmentIncident CHD eventsNonfatal myocardial infarctionIndependent risk factorMedical chart reviewHealthy older womenCause of deathCHD deathCHD eventsCHD mortalityChart reviewCHD incidenceCoronary diseaseFunction impairmentPhysical functionElderly men