2024
Factors Associated with Long COVID Recovery among US Adults
Shah K, Shah R, Sawano M, Wu Y, Bishop P, Iwasaki A, Krumholz H. Factors Associated with Long COVID Recovery among US Adults. The American Journal Of Medicine 2024, 137: 896-899. PMID: 38649004, DOI: 10.1016/j.amjmed.2024.04.017.Peer-Reviewed Original ResearchUS adultsNational Health Interview SurveyNon-institutionalized US adultsLong COVIDFactors associated with Long COVIDReport recoveryHealth Interview SurveyNationally representative estimatesMultivariate logistic regression modelHigh school degreeLogistic regression modelsCOVID-19 symptomsCross-sectional sampleMultivariate logistic regression analysisNational survey dataHispanic adultsLogistic regression analysisInterview SurveyWhite adultsRepresentative estimatesAmerican adultsStudy sampleSchool degreeNonresponse biasRegression models
2022
Identifying quality of life outcome patterns to inform treatment choices in ischemic cardiomyopathy
Mori M, Mark DB, Khera R, Lin H, Jones P, Huang C, Lu Y, Geirsson A, Velazquez EJ, Spertus JA, Krumholz HM. Identifying quality of life outcome patterns to inform treatment choices in ischemic cardiomyopathy. American Heart Journal 2022, 254: 12-22. PMID: 35932911, DOI: 10.1016/j.ahj.2022.07.007.Peer-Reviewed Original ResearchConceptsCoronary artery bypass surgeryGuideline-directed medical therapyTreatment choiceBetter outcomesIschemic cardiomyopathyQOL outcomesQoL dataKansas City Cardiomyopathy Questionnaire overall summary scoreQOL trajectoriesOutcome patternsIschemic Heart Failure (STICH) trialHeart Failure TrialMain baseline predictorsArtery bypass surgeryOverall summary scoreDifferent treatment choicesLogistic regression modelsBypass surgeryMedical therapySurgical treatmentFailure TrialLife scoresQOL scoresPatient's probabilityBaseline predictorsSex 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
Factors Associated With Cardiac Rehabilitation Participation in Older Adults After Myocardial Infarction
Goldstein DW, Hajduk AM, Song X, Tsang S, Geda M, Dodson JA, Forman DE, Krumholz H, Chaudhry SI. Factors Associated With Cardiac Rehabilitation Participation in Older Adults After Myocardial Infarction. Journal Of Cardiopulmonary Rehabilitation And Prevention 2021, 42: 109-114. PMID: 34799530, PMCID: PMC8881286, DOI: 10.1097/hcr.0000000000000627.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionUtilization of CRCardiac rehabilitationCR participationOlder adultsMyocardial infarctionSensory impairmentMultivariable-adjusted logistic regression modelsNationwide prospective cohort studyOlder AMI patientsCardiac rehabilitation participationProspective cohort studyYr of educationSILVER-AMI StudyLogistic regression modelsSecondary preventionClinical factorsCohort studyPatient ageIndependent predictorsAMI patientsRehabilitation participationPsychosocial factorsCR useExtensive baseline dataToward Dynamic Risk Prediction of Outcomes After Coronary Artery Bypass Graft
Mori M, Durant TJS, Huang C, Mortazavi BJ, Coppi A, Jean RA, Geirsson A, Schulz WL, Krumholz HM. Toward Dynamic Risk Prediction of Outcomes After Coronary Artery Bypass Graft. Circulation Cardiovascular Quality And Outcomes 2021, 14: e007363. PMID: 34078100, PMCID: PMC8635167, DOI: 10.1161/circoutcomes.120.007363.Peer-Reviewed Original ResearchConceptsCoronary artery bypass graftArtery bypass graftIntraoperative variablesBypass graftLogistic regression modelsOperative mortalityC-statisticCoronary artery bypass graft casesThoracic Surgeons Adult Cardiac Surgery DatabaseAdult Cardiac Surgery DatabaseMean patient ageGood c-statisticCardiac Surgery DatabaseBrier scoreRisk restratificationDynamic risk predictionIntraoperative deathsPostoperative complicationsPostoperative eventsAdverse eventsPatient agePreoperative variablesRegression modelsGraft casesSurgery DatabaseAssociation between antecedent statin use and decreased mortality in hospitalized patients with COVID-19
Gupta A, Madhavan MV, Poterucha TJ, DeFilippis EM, Hennessey JA, Redfors B, Eckhardt C, Bikdeli B, Platt J, Nalbandian A, Elias P, Cummings MJ, Nouri SN, Lawlor M, Ranard LS, Li J, Boyle C, Givens R, Brodie D, Krumholz HM, Stone GW, Sethi SS, Burkhoff D, Uriel N, Schwartz A, Leon MB, Kirtane AJ, Wan EY, Parikh SA. Association between antecedent statin use and decreased mortality in hospitalized patients with COVID-19. Nature Communications 2021, 12: 1325. PMID: 33637713, PMCID: PMC7910606, DOI: 10.1038/s41467-021-21553-1.Peer-Reviewed Original ResearchConceptsAcute respiratory distress syndromeStatin usePrimary endpointCOVID-19Multivariable logistic regression modelStudy periodLower inpatient mortalityPropensity-matched cohortRespiratory distress syndromeCoronavirus disease 2019Electronic medical recordsLogistic regression modelsPropensity-score matchingHospital mortalityHyperinflammatory stateOutpatient medicationsClinical characteristicsInpatient mortalityStatin usersThrombotic complicationsDistress syndromeHospitalized patientsMyocardial injuryMedical recordsRetrospective analysisAdministrative Claims Measure for Profiling Hospital Performance Based on 90-Day All-Cause Mortality Following Coronary Artery Bypass Graft Surgery
Mori M, Nasir K, Bao H, Jimenez A, Legore SS, Wang Y, Grady J, Lama SD, Brandi N, Lin Z, Kurlansky P, Geirsson A, Bernheim SM, Krumholz HM, Suter LG. Administrative Claims Measure for Profiling Hospital Performance Based on 90-Day All-Cause Mortality Following Coronary Artery Bypass Graft Surgery. Circulation Cardiovascular Quality And Outcomes 2021, 14: e006644. PMID: 33535776, DOI: 10.1161/circoutcomes.120.006644.Peer-Reviewed Original ResearchConceptsRisk-standardized mortality ratesCoronary artery bypass graft surgeryArtery bypass graft surgeryBypass graft surgeryMortality rateGraft surgeryC-statisticMedicaid ServicesAdministrative Claims MeasureCause mortality ratesMortality measuresUnadjusted mortality ratesProfiling Hospital PerformanceHierarchical logistic regression modelsAlternate payment modelsHospital performanceLogistic regression modelsCABG recoveryPayment modelsCABG surgeryCause mortalityCABG proceduresDays postsurgeryHospital levelSurgery
2019
The relationship between off-hours admissions for primary percutaneous coronary intervention, door-to-balloon time and mortality for patients with ST-elevation myocardial infarction in England: a registry-based prospective national cohort study
Jayawardana S, Salas-Vega S, Cornehl F, Krumholz HM, Mossialos E. The relationship between off-hours admissions for primary percutaneous coronary intervention, door-to-balloon time and mortality for patients with ST-elevation myocardial infarction in England: a registry-based prospective national cohort study. BMJ Quality & Safety 2019, 29: 541-549. PMID: 31831635, PMCID: PMC7362773, DOI: 10.1136/bmjqs-2019-010067.Peer-Reviewed Original ResearchConceptsPrimary percutaneous coronary interventionOff-hours admissionPercutaneous coronary interventionDTB timeCoronary interventionBalloon timeST-elevation myocardial infarction (STEMI) patientsElevation myocardial infarction patientsProspective national cohort studyST-elevation myocardial infarctionCent of admissionsMedian DTB timeOff-hour effectPatient risk factorsProspective observational studyRecords of patientsPrimary outcome measureNational cohort studyTimeliness of careMyocardial infarction patientsHierarchical logistic regression modelsLogistic regression modelsHospital mortalityCohort studySecondary outcomesTraditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China: Analysis From the China PEACE Retrospective Heart Failure Study
Yu Y, Spatz ES, Tan Q, Liu S, Lu Y, Masoudi FA, Schulz WL, Krumholz HM, Li J, Group T. Traditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China: Analysis From the China PEACE Retrospective Heart Failure Study. Journal Of The American Heart Association 2019, 8: e012776. PMID: 31364457, PMCID: PMC6761625, DOI: 10.1161/jaha.119.012776.Peer-Reviewed Original ResearchConceptsTraditional Chinese medicineAcute heart failureHeart failureEvidence-based therapiesWestern Medicine HospitalTCM useMedicine HospitalEvidence-based therapy useTraditional Chinese medicine useChinese medicine useCoronary artery diseaseHeart Failure StudyHierarchical logistic regression modelsLogistic regression modelsSalvia miltiorrhizaRandom sampleHospital bleedingPatient's bleedingPatient characteristicsArtery diseaseTherapy useMedicine useHospital characteristicsRetrospective analysisHospital use
2018
Factors Associated With Return to Work After Acute Myocardial Infarction in China
Jiang Z, Dreyer RP, Spertus JA, Masoudi FA, Li J, Zheng X, Li X, Wu C, Bai X, Hu S, Wang Y, Krumholz HM, Chen H. Factors Associated With Return to Work After Acute Myocardial Infarction in China. JAMA Network Open 2018, 1: e184831. PMID: 30646375, PMCID: PMC6324382, DOI: 10.1001/jamanetworkopen.2018.4831.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionIndex acute myocardial infarctionHistory of smokingMyocardial infarctionHospital complicationsBaseline characteristicsFemale sexPatient baseline characteristicsProspective cohort studyLower likelihoodAcute myocardial infarction hospitalizationsLogistic regression modelsMyocardial infarction hospitalizationsCohort studyPatient factorsChina PatientProspective studyChinese patientsMAIN OUTCOMEInfarctionPatientsMonthsHospitalizationComplicationsSmokingEmergency Department Volume and Outcomes for Patients After Chest Pain Assessment
Ko DT, Dattani ND, Austin PC, Schull MJ, Ross JS, Wijeysundera HC, Tu JV, Eberg M, Koh M, Krumholz HM. Emergency Department Volume and Outcomes for Patients After Chest Pain Assessment. Circulation Cardiovascular Quality And Outcomes 2018, 11: e004683. PMID: 30354285, DOI: 10.1161/circoutcomes.118.004683.Peer-Reviewed Original ResearchConceptsAcute coronary syndromeChest painHigh-volume EDsCoronary syndromeED volumeVolume thresholdCardiac medication useChest pain assessmentLower adverse outcomesEmergency department visitsAdjusted odds ratioPopulation-based dataProcess of carePotential confounding variablesHigher ED volumesHierarchical logistic regression modelsLogistic regression modelsEmergency department volumeCause deathCardiac testingComposite outcomeDepartment visitsDiabetes mellitusMedication usePrimary outcomeSex Differences in Timeliness of Reperfusion in Young Patients With ST‐Segment–Elevation Myocardial Infarction by Initial Electrocardiographic Characteristics
Gupta A, Barrabes JA, Strait K, Bueno H, Porta‐Sánchez A, Acosta‐Vélez J, Lidón R, Spatz E, Geda M, Dreyer RP, Lorenze N, Lichtman J, D'Onofrio G, Krumholz HM. Sex Differences in Timeliness of Reperfusion in Young Patients With ST‐Segment–Elevation Myocardial Infarction by Initial Electrocardiographic Characteristics. Journal Of The American Heart Association 2018, 7: e007021. PMID: 29514807, PMCID: PMC5907538, DOI: 10.1161/jaha.117.007021.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAge of OnsetElectrocardiographyFemaleHealthcare DisparitiesHumansMaleMiddle AgedMyocardial ReperfusionPredictive Value of TestsProspective StudiesRisk AssessmentRisk FactorsSex FactorsSpainST Elevation Myocardial InfarctionTime FactorsTime-to-TreatmentTreatment OutcomeUnited StatesYoung AdultConceptsST-segment elevation myocardial infarctionElectrocardiographic characteristicsMyocardial infarctionReperfusion delayYounger patientsVentricular hypertrophyST elevationPrehospital ECGLateral leadsMultivariable logistic regression modelTimeliness of reperfusionVoltage criteriaElevation myocardial infarctionLeft ventricular hypertrophyAcute myocardial infarctionYears of ageLogistic regression modelsSex differencesClinical characteristicsCohort studyElectrocardiographic correlatesMultivariable analysisFemale sexSpanish hospitalsReperfusion guidelines
2015
National assessment of statin therapy for patients with acute myocardial infarction, 2001–11: insight from the China PEACE-Retrospective Acute Myocardial Infarction study
Zhang L, Li J, Li X, Nasir K, Zhang H, Wu Y, Hu S, Wang Q, Downing N, Desai N, Masoudi F, Spertus J, Krumholz H, Jiang L, Group O. National assessment of statin therapy for patients with acute myocardial infarction, 2001–11: insight from the China PEACE-Retrospective Acute Myocardial Infarction study. The Lancet 2015, 386: s42. DOI: 10.1016/s0140-6736(15)00623-6.Peer-Reviewed Original ResearchIntensive statin therapyAcute myocardial infarctionAcute Myocardial Infarction StudyStatin therapyMyocardial Infarction StudyMyocardial infarctionStatin useCardiovascular diseaseLow-density lipoprotein cholesterolStatin therapy useLong-term mortalityUse of statinsNumber of patientsTwo-stage random sampling designMultilevel logistic regression modelsCochran-Armitage testLogistic regression modelsWestern rural regionStatin regimensEligible patientsHospital mortalityLipoprotein cholesterolFamily Planning CommissionIntensive therapyTherapy useDifferences in Colonoscopy Quality Among Facilities: Development of a Post-Colonoscopy Risk-Standardized Rate of Unplanned Hospital Visits
Ranasinghe I, Parzynski CS, Searfoss R, Montague J, Lin Z, Allen J, Vender R, Bhat K, Ross JS, Bernheim S, Krumholz HM, Drye EE. Differences in Colonoscopy Quality Among Facilities: Development of a Post-Colonoscopy Risk-Standardized Rate of Unplanned Hospital Visits. Gastroenterology 2015, 150: 103-113. PMID: 26404952, DOI: 10.1053/j.gastro.2015.09.009.Peer-Reviewed Original ResearchConceptsUnplanned hospital visitsDay of colonoscopyHospital visitsOutpatient facilitiesColonoscopy qualityHealthcare costsRisk-standardized ratesHospital outpatient departmentsUtilization Project dataAmbulatory surgery centersLogistic regression modelsHierarchical logistic regressionQuality improvement effortsPrior arrhythmiaAbdominal painElectrolyte imbalanceOutpatient departmentSurgery centersCommon causeHospital careOutcome measuresPsychiatric disordersColonoscopyUtilization ProjectPatient choice
2014
Hospital Variation in Noninvasive Positive Pressure Ventilation for Acute Decompensated Heart Failure
Kulkarni VT, Kim N, Dai Y, Dharmarajan K, Safavi KC, Bikdeli B, Lindenauer PK, Testani J, Dries DL, Krumholz HM. Hospital Variation in Noninvasive Positive Pressure Ventilation for Acute Decompensated Heart Failure. Circulation Heart Failure 2014, 7: 427-433. PMID: 24633829, PMCID: PMC4386575, DOI: 10.1161/circheartfailure.113.000698.Peer-Reviewed Original ResearchConceptsAcute decompensated heart failureNoninvasive positive pressure ventilationDecompensated heart failureRisk-standardized mortality ratesPositive pressure ventilationHeart failureIntubation rateMortality ratePressure ventilationUse of NPPVHospital risk-standardized mortality ratesHigher intubation rateHospital practice patternsHospital-level outcomesCross-sectional studyHierarchical logistic regression modelsLogistic regression modelsNIPPV useHospital variationSuch hospitalizationsPractice patternsHospitalizationHospitalQuartileBottom quartile
2013
Regional Density of Cardiologists and Rates of Mortality for Acute Myocardial Infarction and Heart Failure
Kulkarni VT, Ross JS, Wang Y, Nallamothu BK, Spertus JA, Normand SL, Masoudi FA, Krumholz HM. Regional Density of Cardiologists and Rates of Mortality for Acute Myocardial Infarction and Heart Failure. Circulation Cardiovascular Quality And Outcomes 2013, 6: 352-359. PMID: 23680965, PMCID: PMC5323047, DOI: 10.1161/circoutcomes.113.000214.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCardiologyCohort StudiesFemaleHealth Services AccessibilityHealth Services Needs and DemandHealthcare DisparitiesHeart FailureHospitalizationHumansLinear ModelsLogistic ModelsMaleMedicareMyocardial InfarctionOdds RatioPhysiciansPneumoniaPrognosisResidence CharacteristicsRisk AssessmentRisk FactorsTime FactorsUnited StatesWorkforceConceptsAcute myocardial infarctionHeart failureHospital referral regionsMortality riskLowest quintileMyocardial infarctionReferral regionsMedicare administrative claims dataCharacteristics of patientsRisk of deathAdministrative claims dataHierarchical logistic regression modelsLogistic regression modelsRate of mortalityRegional densityHighest quintileNumber of cardiologistsWorse outcomesClaims dataPatientsPneumoniaCardiologistsHospitalizationAdmissionQuintileIncome inequality and 30 day outcomes after acute myocardial infarction, heart failure, and pneumonia: retrospective cohort study
Lindenauer PK, Lagu T, Rothberg MB, Avrunin J, Pekow PS, Wang Y, Krumholz HM. Income inequality and 30 day outcomes after acute myocardial infarction, heart failure, and pneumonia: retrospective cohort study. The BMJ 2013, 346: f521. PMID: 23412830, PMCID: PMC3573180, DOI: 10.1136/bmj.f521.Peer-Reviewed Original ResearchConceptsIncome inequalityAcute myocardial infarctionUS statesRetrospective cohort studyDay of admissionHeart failureMyocardial infarctionCohort studyInequality levelsIndividual incomeGini coefficientUS acute care hospitalsHighest quarterDays of dischargeDays of hospitalizationRisk of readmissionRisk of deathPatient socioeconomic characteristicsRisk of mortalityAcute care hospitalsSocioeconomic characteristicsInequalityLogistic regression modelsCare hospitalReadmission analysis
2012
Hospital Patterns of Use of Positive Inotropic Agents in Patients With Heart Failure
Partovian C, Gleim SR, Mody PS, Li SX, Wang H, Strait KM, Allen LA, Lagu T, Normand SL, Krumholz HM. Hospital Patterns of Use of Positive Inotropic Agents in Patients With Heart Failure. Journal Of The American College Of Cardiology 2012, 60: 1402-1409. PMID: 22981548, PMCID: PMC3636773, DOI: 10.1016/j.jacc.2012.07.011.Peer-Reviewed Original ResearchConceptsPositive inotropic agentsRisk-standardized ratesInotropic agentsHeart failureInotrope useHospital patternsMortality rateRisk-standardized mortality ratesHospital mortality rateHeart failure patientsLittle clinical evidenceLength of stayPatient case mixHierarchical logistic regression modelsLogistic regression modelsIntraclass correlation coefficientFailure patientsHospital variationClinical evidenceInterhospital variationClinical guidelinesIndividual hospital effectsHospital ratesHospital effectsPatterns of useDevelopment of 2 Registry-Based Risk Models Suitable for Characterizing Hospital Performance on 30-Day All-Cause Mortality Rates Among Patients Undergoing Percutaneous Coronary Intervention
Curtis JP, Geary LL, Wang Y, Chen J, Drye EE, Grosso LM, Spertus JA, Rumsfeld JS, Weintraub WS, Masoudi FA, Brindis RG, Krumholz HM. Development of 2 Registry-Based Risk Models Suitable for Characterizing Hospital Performance on 30-Day All-Cause Mortality Rates Among Patients Undergoing Percutaneous Coronary Intervention. Circulation Cardiovascular Quality And Outcomes 2012, 5: 628-637. PMID: 22949491, DOI: 10.1161/circoutcomes.111.964569.Peer-Reviewed Original ResearchMeSH KeywordsAcute Coronary SyndromeAgedAged, 80 and overAngina PectorisChi-Square DistributionComorbidityFemaleHeart DiseasesHospital MortalityHospitalsHumansLogistic ModelsMaleMyocardial InfarctionOdds RatioOutcome and Process Assessment, Health CarePercutaneous Coronary InterventionQuality Indicators, Health CareRegistriesRisk AssessmentRisk FactorsShock, CardiogenicTime FactorsTreatment OutcomeUnited StatesConceptsST-segment elevation myocardial infarctionPercutaneous coronary interventionRisk-standardized mortality ratesElevation myocardial infarctionPatient mortality ratesMyocardial infarctionMortality rateCardiogenic shockCoronary interventionDerivation cohortHospital risk-standardized mortality ratesCause mortality ratesAdministrative claims dataQuality of careHierarchical logistic regression modelsNational Quality ForumLogistic regression modelsObserved mortality rateCathPCI RegistryNational HospitalClaims dataInfarctionPatientsQuality ForumFinal model
2011
Use and Effectiveness of Intra-Aortic Balloon Pumps Among Patients Undergoing High Risk Percutaneous Coronary Intervention
Curtis JP, Rathore SS, Wang Y, Chen J, Nallamothu BK, Krumholz HM. Use and Effectiveness of Intra-Aortic Balloon Pumps Among Patients Undergoing High Risk Percutaneous Coronary Intervention. Circulation Cardiovascular Quality And Outcomes 2011, 5: 21-30. PMID: 22147887, PMCID: PMC3801197, DOI: 10.1161/circoutcomes.110.960385.Peer-Reviewed Original ResearchConceptsHigh-risk percutaneous coronary interventionIntra-aortic balloon pumpPercutaneous coronary interventionHospital quartilesHospital mortalityIABP useCoronary interventionBalloon pumpHospital characteristicsST-segment elevation myocardial infarctionDepressed left ventricular functionHigh-risk PCI patientsSegment elevation myocardial infarctionElevation myocardial infarctionLeft ventricular functionHierarchical logistic regression modelsLogistic regression modelsIABP usageCardiogenic shockPCI patientsCathPCI RegistryHemodynamic supportVentricular functionHospital variationMultivariable analysis