1999
Comparing 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
1997
Quality of Care for Elderly Patients Hospitalized With Heart Failure
Krumholz HM, Wang Y, Parent EM, Mockalis J, Petrillo M, Radford MJ. Quality of Care for Elderly Patients Hospitalized With Heart Failure. JAMA Internal Medicine 1997, 157: 2242-2247. PMID: 9343001, DOI: 10.1001/archinte.1997.00440400092011.Peer-Reviewed Original ResearchConceptsHeart failureQuality of careEnzyme inhibitorsElderly patientsClinical practiceResearch Clinical Practice GuidelinesLeft ventricular ejection fractionLeft ventricular systolic functionRetrospective medical record reviewAngiotensin-converting enzyme inhibitorSevere aortic stenosisPercentage of patientsVentricular systolic functionMedical record reviewVentricular ejection fractionClinical practice guidelinesPrincipal discharge diagnosisAcute care hospitalsActual clinical practiceHealth care policyChart reviewSystolic functionAortic stenosisAppropriate patientsCare hospital