2022
Sex Differences in Characteristics, Treatments, and Outcomes Among Patients Hospitalized for Non–ST-Segment–Elevation Myocardial Infarction in China: 2006 to 2015
Guo W, Du X, Gao Y, Hu S, Lu Y, Dreyer RP, Li X, Spatz ES, Masoudi FA, Krumholz HM, Zheng X. Sex Differences in Characteristics, Treatments, and Outcomes Among Patients Hospitalized for Non–ST-Segment–Elevation Myocardial Infarction in China: 2006 to 2015. Circulation Cardiovascular Quality And Outcomes 2022, 15: e008535. PMID: 35607994, PMCID: PMC9208815, DOI: 10.1161/circoutcomes.121.008535.Peer-Reviewed Original ResearchConceptsSegment elevation myocardial infarctionInvasive strategyMyocardial infarctionHospital mortalityHospital outcomesMultivariable logistic regression modelCardiovascular risk factorsElevation myocardial infarctionSex-related disparitiesQuality of careProportion of womenLogistic regression modelsSex differencesClinical characteristicsClinical profileRisk factorsClinical covariatesSex-specific differencesPatientsInfarctionST segmentSex gapChinese hospitalsMortalityWomen
2021
Characteristics, interventions and outcomes of patients with valvular heart disease hospitalised in China: a cross-sectional study
Huang X, Dhruva SS, Yuan X, Bai X, Lu Y, Yan X, Liu J, Li W, Hu D, Ji R, Gao M, Miao F, Li J, Ge J, Krumholz HM, Li J. Characteristics, interventions and outcomes of patients with valvular heart disease hospitalised in China: a cross-sectional study. BMJ Open 2021, 11: e052946. PMID: 34732492, PMCID: PMC8572400, DOI: 10.1136/bmjopen-2021-052946.Peer-Reviewed Original ResearchConceptsSevere valvular heart diseaseValvular heart diseaseHigh operative riskRheumatic originValve interventionHospital outcomesOperative riskCommon etiologyPrimary diagnosisHeart diseaseSeverity of VHDTypes of VHDCommon valvular heart diseaseMultivariable logistic regression analysisDegenerative valvular heart diseaseOutcomes of patientsCross-sectional studyLogistic regression analysisTwo-stage random sampling designClinical characteristicsFrequent etiologyPredominant etiologyTricuspid regurgitationAdult patientsPatient characteristics
2019
The China Patient-centred Evaluative Assessment of Cardiac Events (PEACE) prospective heart failure study design
Huang X, Yu Y, Li X, Masoudi FA, Spertus JA, Yan X, Krumholz HM, Jiang L, Li J. The China Patient-centred Evaluative Assessment of Cardiac Events (PEACE) prospective heart failure study design. BMJ Open 2019, 9: e025144. PMID: 30782925, PMCID: PMC6377534, DOI: 10.1136/bmjopen-2018-025144.Peer-Reviewed Original ResearchConceptsPatient-reported outcomesHeart failureChina PatientMedical historyCardiac Events Prospective Heart Failure StudyDisease-specific health statusEthics CommitteeCardiovascular risk factorsProspective cohort studyMin walk testHeart Failure StudyPatient's medical historyLocal ethics committeeQuality of careCollection of bloodHF hospitalisationHospitalisation eventsHospital outcomesCohort studyPatient demographicsTransthoracic echocardiogramWalk testHospital treatmentMedical recordsRisk factors
2018
Association of Racial and Socioeconomic Disparities With Outcomes Among Patients Hospitalized With Acute Myocardial Infarction, Heart Failure, and Pneumonia
Downing NS, Wang C, Gupta A, Wang Y, Nuti SV, Ross JS, Bernheim SM, Lin Z, Normand ST, Krumholz HM. Association of Racial and Socioeconomic Disparities With Outcomes Among Patients Hospitalized With Acute Myocardial Infarction, Heart Failure, and Pneumonia. JAMA Network Open 2018, 1: e182044. PMID: 30646146, PMCID: PMC6324513, DOI: 10.1001/jamanetworkopen.2018.2044.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBlack PeopleCohort StudiesFee-for-Service PlansFemaleHealth Status DisparitiesHeart FailureHospitalizationHospitalsHumansMaleMedicareMiddle AgedMyocardial InfarctionOutcome Assessment, Health CarePneumoniaRacial GroupsRetrospective StudiesSocial ClassUnited StatesWhite PeopleConceptsAcute myocardial infarctionRisk-standardized mortality ratesRisk-standardized readmission ratesReadmission ratesHeart failureMyocardial infarctionMortality rateIntraclass correlation coefficientAnalysis cohortBlack patientsHospital proportionSocioeconomic disparitiesHospital analysisRisk-standardized outcomesRisk-standardized ratesRetrospective cohort studySocioeconomic statusNeighborhood income levelHospital performanceHospital outcomesCohort studyNumber of hospitalsBroader systemic effectsPatient raceMAIN OUTCOMEThe China Patient-centered Evaluative Assessment of Cardiac Events (China PEACE) retrospective heart failure study design
Yu Y, Zhang H, Li X, Lu Y, Masoudi FA, Krumholz HM, Li J. The China Patient-centered Evaluative Assessment of Cardiac Events (China PEACE) retrospective heart failure study design. BMJ Open 2018, 8: e020918. PMID: 29748344, PMCID: PMC5950642, DOI: 10.1136/bmjopen-2017-020918.Peer-Reviewed Original ResearchConceptsHeart failureChina PatientEthics CommitteeRetrospective cohort studyHeart Failure StudyCardiovascular disease prevalenceEthics committee approvalQuality of careHospital outcomesCohort studyPatient characteristicsLeading causeMedical recordsCardiovascular diseaseCase ascertainmentTreatment outcomesCurrent burdenCommittee approvalData abstractionDiagnostic testingPatient recordsCentral Ethics CommitteeLocal approvalPatientsStudy design
2016
The china patient‐centered evaluative assessment of cardiac events (PEACE) prospective study of percutaneous coronary intervention: Study design
Du X, Pi Y, Dreyer RP, Li J, Li X, Downing NS, Li L, Feng F, Zhan L, Zhang H, Guan W, Xu X, Li S, Lin Z, Masoudi FA, Spertus JA, Krumholz HM, Jiang L, Group F. The china patient‐centered evaluative assessment of cardiac events (PEACE) prospective study of percutaneous coronary intervention: Study design. Catheterization And Cardiovascular Interventions 2016, 88: e212-e221. PMID: 26945565, PMCID: PMC5215582, DOI: 10.1002/ccd.26461.Peer-Reviewed Original ResearchMeSH KeywordsChinaClinical ProtocolsCoronary AngiographyHealth StatusHealthcare DisparitiesHumansMedication AdherenceMyocardial InfarctionPatient Reported Outcome MeasuresPatient-Centered CarePercutaneous Coronary InterventionPredictive Value of TestsProspective StudiesResearch DesignRisk AssessmentRisk FactorsSecondary PreventionTime FactorsTreatment OutcomeConceptsPercutaneous coronary interventionPatient-reported outcomesCardiovascular risk factor controlRisk factor controlProspective studyHealth statusMedical historyLong-term clinical outcomesLong-term patient outcomesHospital-level factorsIndependent core laboratoryNationwide prospective studyLong-term outcomesPatient's medical historyHospital outcomesCoronary interventionPatient demographicsSecondary preventionConsecutive patientsMedical chartsPCI indicationPrimary outcomeClinical outcomesClinical presentationHealthcare utilizationChina Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction: Study Design
Li J, Dreyer RP, Li X, Du X, Downing NS, Li L, Zhang HB, Feng F, Guan WC, Xu X, Li SX, Lin ZQ, Masoudi FA, Spertus JA, Krumholz HM, Jiang LX, Group T. China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction: Study Design. Chinese Medical Journal 2016, 129: 72-80. PMID: 26712436, PMCID: PMC4797546, DOI: 10.4103/0366-6999.172596.Peer-Reviewed Original ResearchConceptsPatient-reported outcomesAcute myocardial infarctionChina PatientMedical historyMyocardial infarctionPatient experienceLong-term adverse eventsRisk factor controlConsecutive AMI patientsAMI studyPatient's medical historyQuality of lifeNational Coordinating CentreQuality improvement activitiesHospital outcomesCardiac eventsPatient demographicsAdverse eventsMedical chartsHealthcare utilizationAMI patientsMedication adherenceProspective studyHospitalization eventsRisk factors
2015
Intravenous Fluids in Acute Decompensated Heart Failure
Bikdeli B, Strait KM, Dharmarajan K, Li SX, Mody P, Partovian C, Coca SG, Kim N, Horwitz LI, Testani JM, Krumholz HM. Intravenous Fluids in Acute Decompensated Heart Failure. JACC Heart Failure 2015, 3: 127-133. PMID: 25660836, PMCID: PMC4438991, DOI: 10.1016/j.jchf.2014.09.007.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCohort StudiesDatabases, FactualFemaleFluid TherapyHeart FailureHospital MortalityHospitalizationHumansInfusions, IntravenousIntensive Care UnitsIntubation, IntratrachealIsotonic SolutionsMaleMiddle AgedRenal Replacement TherapyRetrospective StudiesRinger's SolutionSaline Solution, HypertonicSodium Potassium Chloride Symporter InhibitorsUnited StatesYoung AdultConceptsAcute decompensated heart failureDecompensated heart failureHeart failureIntravenous fluidsRetrospective cohort studyCritical care admissionRenal replacement therapyDays of hospitalizationProportion of hospitalizationsHalf-normal salineWarrants further investigationOnly diureticsCare admissionHospital deathHospital outcomesCohort studyLoop diureticsPatient groupReplacement therapyWorse outcomesNormal salineInpatient careMedian volumePatientsHospitalization
2014
ST-segment elevation myocardial infarction in China from 2001 to 2011 (the China PEACE-Retrospective Acute Myocardial Infarction Study): a retrospective analysis of hospital data
Li J, Li X, Wang Q, Hu S, Wang Y, Masoudi FA, Spertus JA, Krumholz HM, Jiang L, Group F. ST-segment elevation myocardial infarction in China from 2001 to 2011 (the China PEACE-Retrospective Acute Myocardial Infarction Study): a retrospective analysis of hospital data. The Lancet 2014, 385: 441-451. PMID: 24969506, PMCID: PMC4415374, DOI: 10.1016/s0140-6736(14)60921-1.Peer-Reviewed Original ResearchMeSH KeywordsAgedAspirinChinaClopidogrelFemaleFibrinolytic AgentsHealthcare DisparitiesHospital MortalityHospitals, RuralHospitals, UrbanHumansMaleMiddle AgedMyocardial InfarctionMyocardial ReperfusionPatient AdmissionPercutaneous Coronary InterventionQuality of Health CareRetrospective StudiesTiclopidineTreatment OutcomeConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionHospital mortalityHospital admissionMyocardial infarctionRetrospective analysisPrimary percutaneous coronary interventionAcute myocardial infarction admissionsProportion of patientsUse of aspirinPercutaneous coronary interventionMyocardial infarction admissionsTwo-stage random sampling designQuality of careAnalysis of treatmentBaseline characteristicsCardiac eventsHospital outcomesHospital stayCoronary interventionFamily Planning CommissionClinical profileHospital recordsMedian lengthSTEMI admissionsProtocol for the China PEACE (Patient-centered Evaluative Assessment of Cardiac Events) retrospective study of coronary catheterisation and percutaneous coronary intervention
Li J, Dharmarajan K, Li X, Lin Z, Normand SL, Krumholz HM, Jiang L, Group F. Protocol for the China PEACE (Patient-centered Evaluative Assessment of Cardiac Events) retrospective study of coronary catheterisation and percutaneous coronary intervention. BMJ Open 2014, 4: e004595. PMID: 24607563, PMCID: PMC3948460, DOI: 10.1136/bmjopen-2013-004595.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionCoronary catheterisationCoronary interventionPatient characteristicsRetrospective studyCardiovascular diseaseComplications of treatmentCost of hospitalisationMedical record abstractionPatterns of careDiagnostic testing patternsTwo-stage clusterHospital outcomesRecord abstractionChinese healthcare systemStudy protocolCase ascertainmentImproved careCatheterisationProcedural treatmentsHospitalCentral Ethics CommitteeChinese hospitalsPatientsChina National CenterTransfer Rates From Nonprocedure Hospitals After Initial Admission and Outcomes Among Elderly Patients With Acute Myocardial Infarction
Barreto-Filho JA, Wang Y, Rathore SS, Spatz ES, Ross JS, Curtis JP, Nallamothu BK, Normand SL, Krumholz HM. Transfer Rates From Nonprocedure Hospitals After Initial Admission and Outcomes Among Elderly Patients With Acute Myocardial Infarction. JAMA Internal Medicine 2014, 174: 213-222. PMID: 24296747, DOI: 10.1001/jamainternmed.2013.11944.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCoronary artery bypass graft surgeryArtery bypass graft surgeryRisk-standardized mortality ratesBypass graft surgeryPercutaneous coronary interventionLength of stayMyocardial infarctionElderly patientsGraft surgeryRevascularization ratesCoronary interventionMortality rateLower risk-standardized mortality ratesRate of catheterizationHospital transfer ratesInvasive cardiac proceduresTransfer of patientsRisk-standardized mortalityHospital outcomesInitial admissionMedian lengthService patientsCardiac proceduresHospital differences
2013
Urinary Biomarkers of AKI and Mortality 3 Years after Cardiac Surgery
Coca SG, Garg AX, Thiessen-Philbrook H, Koyner JL, Patel UD, Krumholz HM, Shlipak MG, Parikh CR. Urinary Biomarkers of AKI and Mortality 3 Years after Cardiac Surgery. Journal Of The American Society Of Nephrology 2013, 25: 1063-1071. PMID: 24357673, PMCID: PMC4005309, DOI: 10.1681/asn.2013070742.Peer-Reviewed Original ResearchConceptsKidney injury molecule-1Long-term mortalityIL-18Urinary biomarkersClinical AKICardiac surgeryHighest tertileUrinary neutrophil gelatinase-associated lipocalinProspective long-term followNeutrophil gelatinase-associated lipocalinContinuous net reclassification improvementInjury molecule-1Kidney injury biomarkersPostoperative day 1Gelatinase-associated lipocalinImmediate postoperative periodAdditional prognostic informationLong-term followNet reclassification improvementMortality 3 yearsLiver fatty acidAKI cohortCause mortalityHospital outcomesKidney injuryAssociation Between a Hospital’s Quality Performance for In-Hospital Cardiac Arrest and Common Medical Conditions
Chen LM, Nallamothu BK, Krumholz HM, Spertus JA, Tang F, Chan PS. Association Between a Hospital’s Quality Performance for In-Hospital Cardiac Arrest and Common Medical Conditions. Circulation Cardiovascular Quality And Outcomes 2013, 6: 700-707. PMID: 24221831, PMCID: PMC4465597, DOI: 10.1161/circoutcomes.113.000377.Peer-Reviewed Original ResearchConceptsCommon medical conditionsHospital survival rateAcute myocardial infarctionCardiac arrestMedical conditionsSurvival rateInpatient survivalHeart failureMyocardial infarctionMortality rateHospital cardiac arrest registryHospital qualityIn-Hospital Cardiac ArrestRisk-standardized mortality ratesCardiac Arrest RegistryCardiac arrest outcomesCardiac arrest patientsHospital cardiac arrestCardiac arrest survival ratesPublic reportingHospital outcomesArrest patientsHospital CompareArrest outcomesHospitalThe China Patient-Centered Evaluative Assessment of Cardiac Events (China PEACE) Retrospective Study of Acute Myocardial Infarction
Dharmarajan K, Li J, Li X, Lin Z, Krumholz HM, Jiang L. The China Patient-Centered Evaluative Assessment of Cardiac Events (China PEACE) Retrospective Study of Acute Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2013, 6: 732-740. PMID: 24221838, PMCID: PMC4054693, DOI: 10.1161/circoutcomes.113.000441.Peer-Reviewed Original ResearchConceptsChina PEACE-Retrospective AMI StudyAcute myocardial infarctionChina PatientRetrospective studyMyocardial infarctionOutcomes of patientsAMI studyDiagnostic testing patternsCause of deathSite of careCardiac eventsHospital outcomesPatient characteristicsHospital treatmentCardiovascular diseaseCase ascertainmentImproved care
2012
Correlations among risk‐standardized mortality rates and among risk‐standardized readmission rates within hospitals
Horwitz LI, Wang Y, Desai MM, Curry LA, Bradley EH, Drye EE, Krumholz HM. Correlations among risk‐standardized mortality rates and among risk‐standardized readmission rates within hospitals. Journal Of Hospital Medicine 2012, 7: 690-696. PMID: 22865546, PMCID: PMC3535010, DOI: 10.1002/jhm.1965.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesAcute myocardial infarctionRisk-standardized readmission ratesReadmission ratesRisk-standardized mortalityHeart failureMortality rateReadmission measuresUS hospitalsMortality measuresCross-sectional studyMortality cohortReadmission cohortHospital outcomesSame hospitalMyocardial infarctionMedicare patientsMedicare feeService beneficiariesTeaching hospital membersHospitalSame quartileHospital membersPneumoniaCohortRegional Associations Between Medicare Advantage Penetration and Administrative Claims-based Measures of Hospital Outcomes
Kulkarni VT, Shah SJ, Bernheim SM, Wang Y, Normand SL, Han LF, Rapp MT, Drye EE, Krumholz HM. Regional Associations Between Medicare Advantage Penetration and Administrative Claims-based Measures of Hospital Outcomes. Medical Care 2012, 50: 406-409. PMID: 22456113, PMCID: PMC5459365, DOI: 10.1097/mlr.0b013e318245a0f9.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesAcute myocardial infarctionRisk-standardized readmission ratesHospital outcomesReadmission ratesHeart failureMyocardial infarctionPopulation riskOutcome measuresMortality rateMedicare Advantage patientsHospital referral region levelHospital outcome measuresClaims-based measuresMedicaid Services measuresFFS patientsAdvantage patientsRetrospective studyService patientsMedicare feeMedicare Advantage penetrationPatientsMedicaid ServicesInfarctionPneumonia
2011
Gender Differences in Presentation, Management, and In-Hospital Outcomes for Patients with AMI in a Lower-Middle Income Country: Evidence from Egypt
Butala NM, Desai MM, Linnander EL, Wong YR, Mikhail DG, Ott LS, Spertus JA, Bradley EH, Aaty AA, Abdelfattah A, Gamal A, Kholeif H, Baz M, Allam AH, Krumholz HM. Gender Differences in Presentation, Management, and In-Hospital Outcomes for Patients with AMI in a Lower-Middle Income Country: Evidence from Egypt. PLOS ONE 2011, 6: e25904. PMID: 22022463, PMCID: PMC3192760, DOI: 10.1371/journal.pone.0025904.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHospital outcomesFemale patientsInitial presentationClinical managementDiagnosis of AMIIncome countriesIn-Hospital OutcomesOutcomes of patientsTime of presentationMultivariate logistic regressionGender differencesQuality of careLow-middle income countriesHospital mortalityHospital deathDiabetes mellitusHeart failureAtrial fibrillationHigher BMIMyocardial infarctionCardiovascular diseaseRegistry dataHigh-income countriesEgyptian hospitals
2010
Variation in Hospital Mortality Rates for Patients With Acute Myocardial Infarction
Bradley EH, Herrin J, Curry L, Cherlin EJ, Wang Y, Webster TR, Drye EE, Normand SL, Krumholz HM. Variation in Hospital Mortality Rates for Patients With Acute Myocardial Infarction. The American Journal Of Cardiology 2010, 106: 1108-1112. PMID: 20920648, DOI: 10.1016/j.amjcard.2010.06.014.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHospital characteristicsMyocardial infarctionMortality rateCross-sectional national studyHospital mortality rateHospital patient populationAmerican Hospital Association surveyAMI dischargeMean hospitalHospital outcomesCardiac facilitiesPatient populationAMI volumeMultivariable modelPatient profilesMedicare beneficiariesHospitalHospital bedsPatientsTeaching statusUnited States Census dataStates Census dataInfarctionStatus profile
2006
Hospital Quality for Acute Myocardial Infarction: Correlation Among Process Measures and Relationship With Short-term Mortality
Bradley EH, Herrin J, Elbel B, McNamara RL, Magid DJ, Nallamothu BK, Wang Y, Normand SL, Spertus JA, Krumholz HM. Hospital Quality for Acute Myocardial Infarction: Correlation Among Process Measures and Relationship With Short-term Mortality. JAMA 2006, 296: 72-78. PMID: 16820549, DOI: 10.1001/jama.296.1.72.Peer-Reviewed Original ResearchMeSH KeywordsAgedCenters for Medicare and Medicaid Services, U.S.Cross-Sectional StudiesHospital MortalityHospitalsHumansJoint Commission on Accreditation of Healthcare OrganizationsMedicareMyocardial InfarctionOutcome and Process Assessment, Health CareQuality Indicators, Health CareRegistriesRisk AssessmentUnited StatesConceptsAcute myocardial infarctionMortality rateMyocardial infarctionProcess measuresAngiotensin-converting enzyme inhibitor useRisk-standardized mortality ratesShort-term mortality rateBeta-blocker useEnzyme inhibitor useHospital performanceHospital-level variationShort-term mortalityQuality process measuresAspirin useCessation counselingHospital outcomesInhibitor useAMI patientsNational registryMedication measuresTherapy measuresHospital qualityInfarctionMedicaid ServicesJoint Commission
2004
Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure
Forman DE, Butler J, Wang Y, Abraham WT, O'Connor CM, Gottlieb SS, Loh E, Massie BM, Rich MW, Stevenson LW, Young JB, Krumholz HM. Incidence, predictors at admission, and impact of worsening renal function among patients hospitalized with heart failure. Journal Of The American College Of Cardiology 2004, 43: 61-67. PMID: 14715185, DOI: 10.1016/j.jacc.2003.07.031.Peer-Reviewed Original ResearchConceptsRenal functionHF patientsHospitalized heart failure patientsHistory of HFChronic HF patientsDay of admissionHeart failure patientsLength of hospitalizationSystolic blood pressureRelative risk ratiosAssociation of developmentMajority of casesRegression model analysisAdmission creatinineHospital deathHospital outcomesChart reviewClinical characteristicsFailure patientsSerum creatinineBlood pressureClinical predictorsConsecutive patientsDiabetes mellitusHeart failure