2016
The Promise of Big Data
Krumholz HM. The Promise of Big Data. Circulation Cardiovascular Quality And Outcomes 2016, 9: 616-617. PMID: 28263935, PMCID: PMC5459377, DOI: 10.1161/circoutcomes.116.003366.Peer-Reviewed Original ResearchStatistics as Topic
2010
The relationship between systolic blood pressure on admission and mortality in older patients with heart failure
Vidán MT, Bueno H, Wang Y, Schreiner G, Ross JS, Chen J, Krumholz HM. The relationship between systolic blood pressure on admission and mortality in older patients with heart failure. European Journal Of Heart Failure 2010, 12: 148-155. PMID: 20083624, PMCID: PMC2807767, DOI: 10.1093/eurjhf/hfp195.Peer-Reviewed Original ResearchConceptsAdmission systolic blood pressureSystolic blood pressureHeart failureBlood pressureOlder patientsNational Heart Failure ProjectHigher systolic blood pressureInitial systolic blood pressureHeart Failure ProjectMultivariable logistic regressionPrevious hypertensionSBP 90Ventricular dysfunctionClinical factorsIndependent associationOdds ratioMedicare patientsMortality ratePatientsMmHgLogistic regressionMortalityAdmissionSubgroupsInverse relationship
2005
The Relationship Between B-type Natriuretic Peptide and Health Status in Patients With Heart Failure
Luther SA, McCullough PA, Havranek EP, Rumsfeld JS, Jones PG, Heidenreich PA, Peterson ED, Rathore SS, Krumholz HM, Weintraub WS, Spertus JA, Masoudi FA, Consortium F. The Relationship Between B-type Natriuretic Peptide and Health Status in Patients With Heart Failure. Journal Of Cardiac Failure 2005, 11: 414-421. PMID: 16105631, DOI: 10.1016/j.cardfail.2005.02.004.Peer-Reviewed Original ResearchConceptsKansas City Cardiomyopathy QuestionnaireBNP levelsHeart failureHealth statusBNP changesB-type natriuretic peptide levelsNew York Heart Association classificationB-type natriuretic peptideBaseline BNP levelsKCCQ summary scoreNatriuretic peptide levelsHeart failure severitySystolic heart failureHealth status instrumentsBaseline BNPKCCQ scoresNatriuretic peptideAssociation classificationPatients' perceptionsPeptide levelsPhysiologic measuresSummary scoresPatientsBNPDisease severity
2004
Adverse Effects of β-Blocker Therapy for Patients With Heart Failure: A Quantitative Overview of Randomized Trials
Ko DT, Hebert PR, Coffey CS, Curtis JP, Foody JM, Sedrakyan A, Krumholz HM. Adverse Effects of β-Blocker Therapy for Patients With Heart Failure: A Quantitative Overview of Randomized Trials. JAMA Internal Medicine 2004, 164: 1389-1394. PMID: 15249347, DOI: 10.1001/archinte.164.13.1389.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAgedBisoprololBradycardiaCarbazolesCarvedilolDizzinessFatigueFemaleFollow-Up StudiesHeart Conduction SystemHeart FailureHumansHypotensionMaleMetoprololMiddle AgedPropanolaminesRisk FactorsRisk Reduction BehaviorSeverity of Illness IndexStatistics as TopicTreatment FailureVentricular Dysfunction, LeftWithholding TreatmentConceptsBeta-blocker therapyHeart failureAdverse effectsLeft ventricular systolic dysfunctionBeta-blocker trialsCardiovascular adverse effectsChronic heart failureHeart Failure TrialVentricular systolic dysfunctionΒ-blocker therapyRisk of hypotensionLife-saving therapyRandom-effects modelHF hospitalizationCause mortalitySystolic dysfunctionCause withdrawalsFailure TrialRandomized trialsAbsolute riskElectronic searchPatientsMEDLINE databaseTherapyAbsolute increase
2003
Worsening renal function: What is a clinically meaningful change in creatinine during hospitalization with heart failure?
Smith GL, Vaccarino V, Kosiborod M, Lichtman JH, Cheng S, Watnick SG, Krumholz HM. Worsening renal function: What is a clinically meaningful change in creatinine during hospitalization with heart failure? Journal Of Cardiac Failure 2003, 9: 13-25. PMID: 12612868, DOI: 10.1054/jcaf.2003.3.Peer-Reviewed Original ResearchMeSH KeywordsAgedBiomarkersCohort StudiesConnecticutCreatinineFemaleFollow-Up StudiesHeart FailureHospitalizationHumansKidney DiseasesKidney Function TestsMaleMiddle AgedMultivariate AnalysisPredictive Value of TestsProspective StudiesRisk FactorsSensitivity and SpecificityStatistics as TopicStroke VolumeSurvival AnalysisConceptsCreatinine elevationRenal functionHeart failureAdverse outcomesRisk of deathNumber of patientsMagnitude of riskBaseline creatinineProspective cohortRisk factorsFunctional declineHigh riskPatientsCreatinineMortalityHospitalizationDeathDlImportant predictorRiskElevationMeaningful changeMaximum specificityOutcomesBetter definition
2002
Acute myocardial infarction in the elderly with diabetes
Chyun D, Vaccarino V, Murillo J, Young LH, Krumholz HM. Acute myocardial infarction in the elderly with diabetes. Heart & Lung 2002, 31: 327-339. PMID: 12487011, DOI: 10.1067/mhl.2002.126049.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionDiabetes mellitusMyocardial infarctionHeart failureComorbid conditionsMortality rateNon-Q-wave myocardial infarctionHistory of DMInsulin-treated diabetes mellitusRetrospective medical record reviewHigher body mass indexAcute MI settingPoor functional statusBlood pressure managementMedical record reviewSpecific comorbid conditionsSecondary preventive interventionsBody mass indexShort-term mortalityCooperative Cardiovascular ProjectEntire Medicare populationShort-term riskAggressive lipidDM statusChest pain
2001
The case for comprehensive quality indicator reliability assessment
Scinto J, Galusha D, Krumholz H, Meehan T. The case for comprehensive quality indicator reliability assessment. Journal Of Clinical Epidemiology 2001, 54: 1103-1111. PMID: 11675161, DOI: 10.1016/s0895-4356(01)00381-x.Peer-Reviewed Original ResearchMeSH KeywordsHumansObserver VariationPneumoniaProcess Assessment, Health CareQuality Indicators, Health CareReproducibility of ResultsStatistics as TopicConceptsComposite quality indicatorHospital medical recordsProcess of careRecent dischargeKappa valuesPrevalence effectBias-adjusted kappaHospital arrivalAntibiotic administrationMedical recordsOverall eligibilityOxygenation assessmentQuality indicatorsCareKappa statisticsInterrater agreementKappaEligibility