2001
The association between white blood cell count and acute myocardial infarction mortality in patients ≥65 years of age: findings from the cooperative cardiovascular project
Barron H, Harr S, Radford M, Wang Y, Krumholz H. The association between white blood cell count and acute myocardial infarction mortality in patients ≥65 years of age: findings from the cooperative cardiovascular project. Journal Of The American College Of Cardiology 2001, 38: 1654-1661. PMID: 11704377, DOI: 10.1016/s0735-1097(01)01613-8.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionWhite blood cell countBlood cell countWBC countWhite blood cellsYears of ageIndependent predictorsCell countDevelopment of AMIAcute myocardial infarction mortalityHospital clinical eventsLong-term mortalityRisk-stratify patientsCoronary artery diseaseCooperative Cardiovascular Project databaseStrong independent predictorCooperative Cardiovascular ProjectMyocardial infarction mortalityImportant clinical implicationsHospital mortalityArtery diseaseHospital eventsClinical eventsHighest quintileLowest quintileBlood Transfusion in Elderly Patients with Acute Myocardial Infarction
Wu W, Rathore S, Wang Y, Radford M, Krumholz H. Blood Transfusion in Elderly Patients with Acute Myocardial Infarction. New England Journal Of Medicine 2001, 345: 1230-1236. PMID: 11680442, DOI: 10.1056/nejmoa010615.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionBlood transfusionMyocardial infarctionElderly patientsHematocrit valuesMortality rateLower short-term mortality rateMedicare beneficiaries 65 yearsShort-term mortality rateUse of transfusionsCoronary artery diseaseBeneficiaries 65 yearsDegree of anemiaLow hematocrit valuesArtery diseaseRetrospective studySubgroup analysisTransfusionPatientsAdmissionInfarctionMortalityHematocritAdverse effectsAnemiaAcute myocardial infarction in the elderly: differences by age
Mehta R, Rathore S, Radford M, Wang Y, Wang Y, Krumholz H. Acute myocardial infarction in the elderly: differences by age. Journal Of The American College Of Cardiology 2001, 38: 736-741. PMID: 11527626, DOI: 10.1016/s0735-1097(01)01432-2.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overFemaleHumansMaleMyocardial InfarctionOdds RatioUnited StatesConceptsAcute myocardial infarctionAge-associated differencesElderly patientsClinical characteristicsAge groupsMyocardial infarctionThirty-day mortality rateMedicare beneficiaries ageOne-year mortalityPrior coronary diseaseProportion of patientsST-segment elevationOlder age groupsSignificant age-associated differencesChest painEffect of ageOlder patientsRenal insufficiencyCoronary diseaseHeart failureHospital admissionPatient characteristicsSuccessive age groupsSymptom onsetDiabetic patientsPredicting one-year mortality among elderly survivors of hospitalization for an acute myocardial infarction: results from the Cooperative Cardiovascular Project
Krumholz H, Chen J, Chen Y, Wang Y, Radford M. Predicting one-year mortality among elderly survivors of hospitalization for an acute myocardial infarction: results from the Cooperative Cardiovascular Project. Journal Of The American College Of Cardiology 2001, 38: 453-459. PMID: 11499737, DOI: 10.1016/s0735-1097(01)01395-x.Peer-Reviewed Original ResearchConceptsOne-year mortalityAcute myocardial infarctionMyocardial infarctionPeripheral vascular diseaseCohort of patientsBody mass indexCooperative Cardiovascular ProjectRisk of mortalityDeath one yearPopulation-based sampleSimple risk modelRenal dysfunctionVentricular dysfunctionElderly patientsOlder patientsUrinary incontinenceHeart failureMass indexAcute carePrognostic importanceMean ageVascular diseaseMedical recordsRisk groupsOlder survivors
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