2022
Hospital Variation of Spironolactone Use in Patients Hospitalized for Heart Failure in China—The China PEACE Retrospective Heart Failure Study
Yu Y, Guan W, Masoudi FA, Wang B, He G, Spertus JA, Lu Y, Krumholz HM, Li J. Hospital Variation of Spironolactone Use in Patients Hospitalized for Heart Failure in China—The China PEACE Retrospective Heart Failure Study. Journal Of The American Heart Association 2022, 11: e026300. PMID: 36172964, PMCID: PMC9673705, DOI: 10.1161/jaha.122.026300.Peer-Reviewed Original ResearchConceptsSpironolactone prescriptionSpironolactone useHeart failureMedian odds ratioIdeal patientAldosterone antagonistsHospital variationMedian rateReduced ejection fractionUse of spironolactoneMultivariable linear regression modelsHeart Failure StudyEjection fractionHospital characteristicsOdds ratioRepresentative cohortPatientsHospitalChinese hospitalsInappropriate usePrescriptionSpironolactoneSelect individualsAntagonistHigh rateSex-Specific Risk Factors Associated With First Acute Myocardial Infarction in Young Adults
Lu Y, Li SX, Liu Y, Rodriguez F, Watson KE, Dreyer RP, Khera R, Murugiah K, D’Onofrio G, Spatz ES, Nasir K, Masoudi FA, Krumholz HM. Sex-Specific Risk Factors Associated With First Acute Myocardial Infarction in Young Adults. JAMA Network Open 2022, 5: e229953. PMID: 35503221, PMCID: PMC9066284, DOI: 10.1001/jamanetworkopen.2022.9953.Peer-Reviewed Original ResearchConceptsFirst acute myocardial infarctionAcute myocardial infarctionPsychosocial risk factorsRisk factor profilePopulation attributable fractionRisk factor associationsRisk factorsOdds ratioYoung womenAMI subtypesMyocardial infarctionPrevention of AMIType 1 acute myocardial infarctionFactor profileRisk of AMITraditional cardiovascular risk factorsSex-specific risk factorsFactor associationsYoung adultsRisk factor modificationCardiovascular risk factorsStrong associationNutrition Examination SurveyCase-control studyPopulation-based controls
2020
Sulodexide versus Control and the Risk of Thrombotic and Hemorrhagic Events: Meta-Analysis of Randomized Trials
Bikdeli B, Chatterjee S, Kirtane AJ, Parikh SA, Andreozzi GM, Desai NR, Francese DP, Gibson CM, Piazza G, Goldhaber SZ, Eikelboom JW, Krumholz HM, Stone GW. Sulodexide versus Control and the Risk of Thrombotic and Hemorrhagic Events: Meta-Analysis of Randomized Trials. Seminars In Thrombosis And Hemostasis 2020, 46: 908-918. PMID: 33086402, DOI: 10.1055/s-0040-1716874.Peer-Reviewed Original ResearchConceptsDeep vein thrombosisUse of sulodexideCause mortalityCardiovascular mortalityReduced oddsPulmonary embolismOdds ratioOdds of VTESafety of sulodexideCardiovascular risk factorsCochrane Central RegisterPeripheral arterial diseaseHistory of MIThrombotic cardiovascular diseasesRandom-effects modelCardiovascular efficacyOral glycosaminoglycansCardiovascular outcomesHemorrhagic eventsCentral RegisterVein thrombosisControlled TrialsArterial diseaseRandomized trialsRisk factorsGeographic Variation in Process and Outcomes of Care for Patients With Acute Myocardial Infarction in China From 2001 to 2015
Zhong Q, Gao Y, Zheng X, Chen J, Masoudi FA, Lu Y, Feng Y, Hu S, Zhang Q, Huang C, Wang Y, Krumholz HM, Li X, Zhou Y. Geographic Variation in Process and Outcomes of Care for Patients With Acute Myocardial Infarction in China From 2001 to 2015. JAMA Network Open 2020, 3: e2021182. PMID: 33095248, PMCID: PMC7584924, DOI: 10.1001/jamanetworkopen.2020.21182.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionProcess of careHospital mortalityMyocardial infarctionOdds ratioAngiotensin receptor blockersCross-sectional studyOutcomes of careReceptor blockersReperfusion therapyPatient characteristicsTherapy useCare measuresPatient hospitalizationIdeal patientOutcome measuresMAIN OUTCOMEΒ-blockersAMI managementPatientsEnzyme inhibitorsSignificant geographic variationMortalityCareHospitalizationUpdating insights into rosiglitazone and cardiovascular risk through shared data: individual patient and summary level meta-analyses
Wallach JD, Wang K, Zhang AD, Cheng D, Grossetta Nardini HK, Lin H, Bracken MB, Desai M, Krumholz HM, Ross JS. Updating insights into rosiglitazone and cardiovascular risk through shared data: individual patient and summary level meta-analyses. The BMJ 2020, 368: l7078. PMID: 32024657, PMCID: PMC7190063, DOI: 10.1136/bmj.l7078.Peer-Reviewed Original ResearchConceptsIndividual patient-level dataCardiovascular related deathsCardiovascular riskMyocardial infarctionRelated deathsSummary-level dataHeart failureOdds ratioSystematic reviewIncreased cardiovascular riskMore myocardial infarctionsHeart failure eventsCochrane Central RegistryAcute myocardial infarctionMyocardial infarction eventsPatient-level dataRandom-effects modelWeb of ScienceAnalysis of trialsEligible trialsComposite outcomeAdverse eventsContinuity correctionControlled TrialsRosiglitazone treatmentQuality of Care for Patients Hospitalized for Heart Failure in China
Gupta A, Yu Y, Tan Q, Liu S, Masoudi FA, Du X, Zhang J, Krumholz HM, Li J. Quality of Care for Patients Hospitalized for Heart Failure in China. JAMA Network Open 2020, 3: e1918619. PMID: 31913489, PMCID: PMC6991250, DOI: 10.1001/jamanetworkopen.2019.18619.Peer-Reviewed Original ResearchConceptsQuality of careHospital levelHF careEligible patientsComposite performance scoreEvidence-based β-blockersAngiotensin-converting enzyme inhibitorRetrospective cross-sectional studyVentricular ejection fraction assessmentMedian rateAngiotensin receptor blockersMedian patient ageHeart failure epidemicCross-sectional studyEjection fraction assessmentMedian odds ratioPerformance scoresHF hospitalizationReceptor blockersPatient ageHeart failureHospital admissionMedical recordsOdds ratioMAIN OUTCOME
2019
P415330-Day readmission after hospitalization for heart failure in china
Li J, Bai X, Zhang L, Masoudi F, Spertus J, Krumholz H. P415330-Day readmission after hospitalization for heart failure in china. European Heart Journal 2019, 40: ehz745.0725. DOI: 10.1093/eurheartj/ehz745.0725.Peer-Reviewed Original ResearchDays of dischargeHeart failurePatient characteristicsMedian odds ratioOdds ratioChronic obstructive pulmonary diseaseIndex hospital stayObstructive pulmonary diseaseWeeks of dischargeValvular heart diseaseTransitions of careHF hospitalizationRandom hospitalsCause readmissionEligible patientsHospital stayHospitalization stayReadmission diagnosesReadmission ratesConsecutive patientsHospital readmissionMedian agePulmonary diseasePatient factorsC-statistic
2018
Comparison of treatment effect sizes from pivotal and postapproval trials of novel therapeutics approved by the FDA based on surrogate markers of disease: a meta-epidemiological study
Wallach JD, Ciani O, Pease AM, Gonsalves GS, Krumholz HM, Taylor RS, Ross JS. Comparison of treatment effect sizes from pivotal and postapproval trials of novel therapeutics approved by the FDA based on surrogate markers of disease: a meta-epidemiological study. BMC Medicine 2018, 16: 45. PMID: 29562926, PMCID: PMC5863466, DOI: 10.1186/s12916-018-1023-9.Peer-Reviewed Original ResearchConceptsPostapproval trialsPivotal trialsActual clinical effectSurrogate markerTrial endpointsLarge treatment effectsPrimary endpointNovel therapeuticsNovel drugsTreatment effectsFDA approvalPatient-relevant outcomesMeta-epidemiological studyStandardized mean differenceTreatment effect sizeClinical effectsResultsBetween 2005Odds ratioDrug trialsSame indicationDrug AdministrationEvidence of differencesMean differenceU.S. FoodDisease
2017
Urban–Rural Comparisons in Hospital Admission, Treatments, and Outcomes for ST-Segment–Elevation Myocardial Infarction in China From 2001 to 2011
Li X, Murugiah K, Li J, Masoudi FA, Chan PS, Hu S, Spertus JA, Wang Y, Downing NS, Krumholz HM, Jiang L. Urban–Rural Comparisons in Hospital Admission, Treatments, and Outcomes for ST-Segment–Elevation Myocardial Infarction in China From 2001 to 2011. Circulation Cardiovascular Quality And Outcomes 2017, 10: e003905. PMID: 29158421, PMCID: PMC6312853, DOI: 10.1161/circoutcomes.117.003905.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overChinaDisease ManagementFemaleHealthcare DisparitiesHospital MortalityHospitalizationHospitals, RuralHospitals, UrbanHumansMaleMiddle AgedOdds RatioQuality ImprovementRetrospective StudiesRural PopulationST Elevation Myocardial InfarctionSurvival RateTime FactorsUrban PopulationConceptsEvidence-based treatmentsMyocardial infarctionEnzyme inhibitors/angiotensin receptor blockersRural hospitalsST-segment elevation myocardial infarctionUrban-rural disparitiesAngiotensin receptor blockersElevation myocardial infarctionAdjusted odds ratioResource-intensive careRisk-adjusted ratesHospital deathReperfusion therapyReceptor blockersHospital admissionCardiac facilitiesPatient outcomesOdds ratioCare persistUrban hospitalΒ-blockersBetter outcomesRural careHealthcare resourcesST segmentInferior Vena Cava Filters to Prevent Pulmonary Embolism Systematic Review and Meta-Analysis
Bikdeli B, Chatterjee S, Desai NR, Kirtane AJ, Desai MM, Bracken MB, Spencer FA, Monreal M, Goldhaber SZ, Krumholz HM. Inferior Vena Cava Filters to Prevent Pulmonary Embolism Systematic Review and Meta-Analysis. Journal Of The American College Of Cardiology 2017, 70: 1587-1597. PMID: 28935036, PMCID: PMC8412839, DOI: 10.1016/j.jacc.2017.07.775.Peer-Reviewed Original ResearchConceptsDeep vein thrombosisSubsequent pulmonary embolismInferior vena cava filterPulmonary embolismVena cava filtersIVC filtersCause mortalityOdds ratioCava filtersSystematic reviewSubsequent deep vein thrombosisInverse variance fixed-effect modelRisk of PECochrane Central RegisterQuality of evidenceFixed-effects modelCentral RegisterVein thrombosisControlled TrialsOverall mortalityObservational studyMAIN OUTCOMEPrimary analysisMeta-AnalysisMortalityHeterogeneity in Early Responses in ALLHAT (Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial)
Dhruva SS, Huang C, Spatz ES, Coppi AC, Warner F, Li SX, Lin H, Xu X, Furberg CD, Davis BR, Pressel SL, Coifman RR, Krumholz HM. Heterogeneity in Early Responses in ALLHAT (Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial). Hypertension 2017, 70: 94-102. PMID: 28559399, DOI: 10.1161/hypertensionaha.117.09221.Peer-Reviewed Original ResearchConceptsAntihypertensive therapySystolic blood pressure responseAdverse cardiovascular eventsFavorable initial responseBlood pressure responseHigher hazard ratioCardiovascular eventsCardiovascular outcomesHazard ratioMultivariable adjustmentHeart failureAverage SBPRandomized trialsOdds ratioCardiovascular diseaseSBPStudy participantsRespondersMonthsPressure responseImmediate respondersALLHATEarly responseInitial responseSuperior discrimination
2016
Practice‐Level Variation in Outpatient Cardiac Care and Association With Outcomes
Clough JD, Rajkumar R, Crim MT, Ott LS, Desai NR, Conway PH, Maresh S, Kahvecioglu DC, Krumholz HM. Practice‐Level Variation in Outpatient Cardiac Care and Association With Outcomes. Journal Of The American Heart Association 2016, 5: e002594. PMID: 26908402, PMCID: PMC4802452, DOI: 10.1161/jaha.115.002594.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAmbulatory CareCardiologyFemaleHealth Care CostsHealthcare DisparitiesHeart DiseasesHospitalizationHumansMaleMedicareMiddle AgedOffice VisitsPractice Patterns, Physicians'Process Assessment, Health CareQuality Indicators, Health CareTime FactorsTreatment OutcomeUnited StatesConceptsOutpatient cardiac careCardiac careCardiac servicesPractice-level variationMyocardial perfusion imagingNoncardiac hospitalizationsMedical hospitalizationCardiac catheterizationOffice visitsClinical endpointsOutpatient careLowest quartileOdds ratioCardiology practiceMedicare populationMedicare beneficiariesHospitalizationPerfusion imagingDevice proceduresEfficient carePhysician practicesQuartileCarePractice levelMean payment
2015
Predictors of warfarin‐associated adverse events in hospitalized patients: Opportunities to prevent patient harm
Metersky ML, Eldridge N, Wang Y, Jaser L, Bona R, Eckenrode S, Bakullari A, Andrawis M, Classen D, Krumholz HM. Predictors of warfarin‐associated adverse events in hospitalized patients: Opportunities to prevent patient harm. Journal Of Hospital Medicine 2015, 11: 276-282. PMID: 26662851, DOI: 10.1002/jhm.2528.Peer-Reviewed Original ResearchConceptsAdverse eventsWarfarin-related adverse eventsHospitalized patientsOdds ratioINR monitoringPneumonia patientsINR measurementsFrequent INR monitoringPredictors of warfarinRetrospective cohort studyAcute cardiac diseaseAcute care hospitalsFrequency of warfarinCohort studyCare hospitalSurgical patientsCardiac patientsCardiac diseasePatientsPatient harmWarfarinSignificant associationINRMore daysMonitoring System dataHospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy
Arnold SV, Li SX, Alexander KP, Spertus JA, Nallamothu BK, Curtis JP, Kosiborod M, Gupta A, Wang TY, Lin H, Dharmarajan K, Strait KM, Lowe TJ, Krumholz HM. Hospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy. Journal Of The American Heart Association 2015, 4: e002009. PMID: 26077589, PMCID: PMC4599539, DOI: 10.1161/jaha.115.002009.Peer-Reviewed Original ResearchConceptsEarly invasive strategyAnticoagulant strategiesMyocardial infarctionBleeding rateInvasive strategyAcute myocardial infarction patientsOptimal anticoagulant strategyHalf of patientsPercutaneous coronary interventionAcute myocardial infarctionMyocardial infarction patientsHospital use patternsComparative effectiveness studiesRisk-standardized mortalityChoice of anticoagulantsMedian odds ratioCoronary interventionPatient factorsSystemic anticoagulationHospital variabilityInfarction patientsPrincipal diagnosisOdds ratioMultivariate regression modelPatterns of use
2010
Delay From Symptom Onset to Hospital Presentation for Patients With Non–ST-Segment Elevation Myocardial Infarction
Ting HH, Chen AY, Roe MT, Chan PS, Spertus JA, Nallamothu BK, Sullivan MD, DeLong ER, Bradley EH, Krumholz HM, Peterson ED. Delay From Symptom Onset to Hospital Presentation for Patients With Non–ST-Segment Elevation Myocardial Infarction. JAMA Internal Medicine 2010, 170: 1834-1841. PMID: 21059977, DOI: 10.1001/archinternmed.2010.385.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionHospital presentationSymptom onsetHospital mortalityMultivariable adjustmentMyocardial infarctionUnstable Angina Patients Suppress Adverse OutcomesCan Rapid Risk StratificationSegment elevation myocardial infarctionNational quality improvement initiativeRapid Risk StratificationQuality improvement initiativesMedian delay timeSecular trendsNon–STCurrent smokingRisk stratificationNonwhite raceAdverse outcomesFemale sexOdds ratioEarly presentationAmerican CollegePatientsThe 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
2007
Patterns of Weight Change Preceding Hospitalization for Heart Failure
Chaudhry SI, Wang Y, Concato J, Gill TM, Krumholz HM. Patterns of Weight Change Preceding Hospitalization for Heart Failure. Circulation 2007, 116: 1549-1554. PMID: 17846286, PMCID: PMC2892745, DOI: 10.1161/circulationaha.107.690768.Peer-Reviewed Original ResearchConceptsHeart failure hospitalizationHeart failureControl patientsFailure hospitalizationBody weightCase patientsWeight gainDecompensated heart failureHeart failure severityBaseline body weightHeart failure decompensationPatient's body weightAdjusted odds ratioCase-control studyGradual weight gainDisease management programsHigh-risk periodBasis of ageOdds ratioHospitalizationPatientsMean increaseDaily weightWeight changeHome monitoringImpact of Delay in Door-to-Needle Time on Mortality in Patients With ST-Segment Elevation Myocardial Infarction
McNamara RL, Herrin J, Wang Y, Curtis JP, Bradley EH, Magid DJ, Rathore SS, Nallamothu BK, Peterson ED, Blaney ME, Frederick P, Krumholz HM. Impact of Delay in Door-to-Needle Time on Mortality in Patients With ST-Segment Elevation Myocardial Infarction. The American Journal Of Cardiology 2007, 100: 1227-1232. PMID: 17920362, PMCID: PMC2715362, DOI: 10.1016/j.amjcard.2007.05.043.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overArrhythmias, CardiacCaliforniaCohort StudiesEmergency Service, HospitalEmergency TreatmentFemaleFibrinolytic AgentsHospital MortalityHumansMaleMedical RecordsMyocardial InfarctionOutcome Assessment, Health CareRegistriesRetrospective StudiesThrombolytic TherapyTime and Motion StudiesTime FactorsConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionNeedle timeFibrinolytic therapyMyocardial infarctionHospital mortalitySymptom onsetOdds ratioReperfusion strategyAdjunctive medicationsHospital arrivalShorter doorTimely administrationNational registryRepresentative cohortPatientsMortalityInfarctionTherapyIndependent effectsCohortMinutesSmaller centersOnsetImpact of delay
2006
Time Course of Depression and Outcome of Myocardial Infarction
Parashar S, Rumsfeld JS, Spertus JA, Reid KJ, Wenger NK, Krumholz HM, Amin A, Weintraub WS, Lichtman J, Dawood N, Vaccarino V. Time Course of Depression and Outcome of Myocardial Infarction. JAMA Internal Medicine 2006, 166: 2035-2043. PMID: 17030839, DOI: 10.1001/archinte.166.18.2035.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAngina, UnstableAntidepressive AgentsDepressionFemaleHealth StatusHumansMaleMiddle AgedMultivariate AnalysisMyocardial InfarctionOutcome Assessment, Health CarePatient ReadmissionPrognosisProspective StudiesQuality of LifeRegistriesSeverity of Illness IndexSurveys and QuestionnairesTime FactorsUnited StatesConceptsPatient Health QuestionnaireMyocardial infarctionDepressive symptomsPrognostic importanceWorse outcomesPersistent depressionHealth statusAdjusted hazard ratioAcute myocardial infarctionCorresponding odds ratiosCategories of depressionMore physical limitationsTime courseFrequent anginaHigher rehospitalizationCause rehospitalizationNondepressed patientsProspective registryHazard ratioOdds ratioHealth QuestionnaireMortality rateDisease severityRehospitalizationFirst month
2004
Cancer Trial Enrollment After State-Mandated Reimbursement
Gross CP, Murthy V, Li Y, Kaluzny AD, Krumholz HM. Cancer Trial Enrollment After State-Mandated Reimbursement. Journal Of The National Cancer Institute 2004, 96: 1063-1069. PMID: 15265967, DOI: 10.1093/jnci/djh193.Peer-Reviewed Original ResearchMeSH KeywordsBreast NeoplasmsClinical Trials, Phase II as TopicClinical Trials, Phase III as TopicColorectal NeoplasmsFemaleGovernment RegulationHumansIncidenceLogistic ModelsLongitudinal StudiesLung NeoplasmsMaleMulticenter Studies as TopicNational Institutes of Health (U.S.)NeoplasmsPatient SelectionPoisson DistributionProstatic NeoplasmsReimbursement MechanismsRetrospective StudiesState GovernmentUnited StatesConceptsCancer trial enrollmentTrial enrollment ratesTrial enrollmentMultivariable analysisTrial participationOdds ratioTrial participantsCoverage policiesCancer trial participantsCooperative group trialsClinical trial enrollmentEarly phase trialsRecruitment of patientsCancer trial participationMedical care costsPhase II trial participantsCancer patientsPhase trialsCancer research studiesGroup trialsCare costsPoisson regressionCancer typesReimbursement policiesPhase II