2021
Trends and geographical variation in population thriving, struggling and suffering across the USA, 2008–2017: a retrospective repeated cross-sectional study
Riley C, Herrin J, Lam V, Hamar B, Witters D, Liu D, Krumholz HM, Roy B. Trends and geographical variation in population thriving, struggling and suffering across the USA, 2008–2017: a retrospective repeated cross-sectional study. BMJ Open 2021, 11: e043375. PMID: 34261676, PMCID: PMC8281074, DOI: 10.1136/bmjopen-2020-043375.Peer-Reviewed Original ResearchConceptsPercentage of peopleCross-sectional studyWell-Being IndexMarked geographical variationNational HealthRetrospective analysisUS populationCross-sectional sampleLife evaluationGeographical disparitiesGreater improvementCantril SelfCurrent life satisfactionGeographical variationLife optimismNational averageInterventionConceptions of healthHealthPercentageAssociation 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 analysis
2019
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
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
2015
Admission glucose and in-hospital mortality in patients with acute myocardial infarction, with and without diabetes, from 2001 to 2011 (the China PEACE-Retrospective Acute Myocardial Infarction Study): a retrospective analysis
Zhao S, Murugiah K, Li X, Li J, Li N, Xu Z, Cheng C, Mao H, Wang Q, Krumholz H, Jiang L, Group O. Admission glucose and in-hospital mortality in patients with acute myocardial infarction, with and without diabetes, from 2001 to 2011 (the China PEACE-Retrospective Acute Myocardial Infarction Study): a retrospective analysis. The Lancet 2015, 386: s43. DOI: 10.1016/s0140-6736(15)00624-8.Peer-Reviewed Original ResearchAcute myocardial infarctionBlood glucose concentrationHospital mortalityMyocardial infarctionChinese patientsMortality riskGlucose concentrationAcute Myocardial Infarction StudyProportion of patientsHospital mortality riskMyocardial Infarction StudyUS National HeartEuglycaemic patientsAdmission glucoseDiabetes statusFamily Planning CommissionHospital admissionPatient characteristicsGlucose categoriesClinical statusBlood InstituteNational HeartNational HealthCardiovascular diseaseRetrospective analysis
2014
Trends in Use of Ezetimibe After the ENHANCE Trial, 2007 Through 2010
Ross JS, Frazee SG, Garavaglia SB, Levin R, Novshadian H, Jackevicius CA, Stettin G, Krumholz HM. Trends in Use of Ezetimibe After the ENHANCE Trial, 2007 Through 2010. JAMA Internal Medicine 2014, 174: 1486-1493. PMID: 25070672, PMCID: PMC4208827, DOI: 10.1001/jamainternmed.2014.3404.Peer-Reviewed Original ResearchConceptsLipid-lowering agentsENHANCE trialEzetimibe useEzetimibe initiationPharmacy benefit managersUse of ezetimibeProgression of atherosclerosisAdults 18 yearsHalf of adultsAtherosclerosis regression trialsPredictors of useBenefit managersEzetimibe monotherapyMonotherapy usersMedication initiationEligible adultsPrescription claimsCholesterol levelsRetrospective analysisMAIN OUTCOMEAdult beneficiariesUS census divisionsDiscontinuationRegression trialsEzetimibeST-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 admissions
2009
All-Cause Readmission and Repeat Revascularization After Percutaneous Coronary Intervention in a Cohort of Medicare Patients
Curtis JP, Schreiner G, Wang Y, Chen J, Spertus JA, Rumsfeld JS, Brindis RG, Krumholz HM. All-Cause Readmission and Repeat Revascularization After Percutaneous Coronary Intervention in a Cohort of Medicare Patients. Journal Of The American College Of Cardiology 2009, 54: 903-907. PMID: 19712799, DOI: 10.1016/j.jacc.2009.04.076.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionReadmission ratesRevascularization proceduresCause readmissionCoronary interventionPCI proceduresMortality rateIndex percutaneous coronary interventionAcute myocardial infarction patientsCause readmission rateIndex PCI procedureMedian readmission rateDays of dischargeRepeat revascularization proceduresMyocardial infarction patientsNon-AMI patientsPCI patientsRepeat revascularizationRevascularization ratesPrimary outcomeInfarction patientsSuch readmissionsMedicare patientsRetrospective analysisReadmission
2007
Certificate of Need Regulation and Cardiac Catheterization Appropriateness After Acute Myocardial Infarction
Ross JS, Ho V, Wang Y, Cha SS, Epstein AJ, Masoudi FA, Nallamothu BK, Krumholz HM. Certificate of Need Regulation and Cardiac Catheterization Appropriateness After Acute Myocardial Infarction. Circulation 2007, 115: 1012-1019. PMID: 17283258, DOI: 10.1161/circulationaha.106.658377.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionCardiac catheterizationHospital coronary artery bypass graft surgeryCoronary artery bypass graft surgeryArtery bypass graft surgeryLower ratesUS acute care hospitalsCardiac catheterization capabilitiesChart-abstracted dataBypass graft surgeryDay of admissionAcute care hospitalsComplex medical careQuality of careGraft surgeryCatheterization ratesClinical characteristicsCON regulationsHospital characteristicsMedicare patientsRetrospective analysisCatheterizationHealthcare costsFull cohort
2005
Volume-based referral for cardiovascular procedures in the United States: a cross-sectional regression analysis
Epstein AJ, Rathore SS, Krumholz HM, Volpp K. Volume-based referral for cardiovascular procedures in the United States: a cross-sectional regression analysis. BMC Health Services Research 2005, 5: 42. PMID: 15935099, PMCID: PMC1175086, DOI: 10.1186/1472-6963-5-42.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionHigh-volume hospitalsVolume hospitalsLow-volume hospitalsNumber of patientsHospital mortalityCoronary artery bypass graft surgeryLeapfrog GroupArtery bypass graft surgeryNational hospital discharge databaseProcedure-associated mortalityVolume-based referralBypass graft surgeryHospital discharge databaseNumber of deathsCABG patientsHospital CABGGraft surgeryPCI patientsCoronary interventionDischarge databaseRetrospective analysisCABGCardiovascular proceduresPatients
2004
Hospital percutaneous coronary intervention volume and patient mortality, 1998 to 2000 Does the evidence support current procedure volume minimums?
Epstein AJ, Rathore SS, Volpp KG, Krumholz HM. Hospital percutaneous coronary intervention volume and patient mortality, 1998 to 2000 Does the evidence support current procedure volume minimums? Journal Of The American College Of Cardiology 2004, 43: 1755-1762. PMID: 15145095, PMCID: PMC2803067, DOI: 10.1016/j.jacc.2003.09.070.Peer-Reviewed Original ResearchConceptsHigh-volume hospitalsMedium-volume hospitalsLow-volume hospitalsHospital mortalityHigh PCI volume hospitalsPercutaneous coronary intervention volumeACC/AHA guidelinesProcedure-associated mortalityHospital mortality rateCurrent American CollegeHospital discharge databaseAnnual PCI volumesVolume hospitalsAHA guidelinesPatient characteristicsPCI volumePatient mortalityDischarge databaseIntervention volumeRetrospective analysisAmerican CollegeComparable riskMortality ratePatientsHospitalHospital Coronary Artery Bypass Graft Surgery Volume and Patient Mortality, 1998–2000
Rathore SS, Epstein AJ, Volpp KG, Krumholz HM. Hospital Coronary Artery Bypass Graft Surgery Volume and Patient Mortality, 1998–2000. Annals Of Surgery 2004, 239: 110-117. PMID: 14685108, PMCID: PMC1356200, DOI: 10.1097/01.sla.0000103066.22732.b8.Peer-Reviewed Original ResearchMeSH KeywordsAge DistributionAgedAnalysis of VarianceCause of DeathCoronary Artery BypassCoronary DiseaseFemaleHospital MortalityHumansIncidenceMaleMiddle AgedOdds RatioOutcome Assessment, Health CareProbabilityRegistriesRetrospective StudiesRisk AssessmentSampling StudiesSex DistributionTotal Quality ManagementUnited StatesConceptsLow-volume hospitalsMedium-volume hospitalsHigh-volume hospitalsSurgery volumeMortality riskMortality rateNational Inpatient Sample databaseRisk-standardized mortality ratesHospital CABG volumeHospital mortality rateRisk of mortalityLower mortality riskHealth care purchasersHospital mortalityMultivariable adjustmentVolume hospitalsBorderline significanceCABG volumeRetrospective analysisVolume groupMortality differencesPatientsHospitalLeapfrog GroupReliable marker
2003
Quality of Care of Medicare Beneficiaries with Acute Myocardial Infarction: Who Is Included in Quality Improvement Measurement?
Rathore SS, Wang Y, Radford MJ, Ordin DL, Krumholz HM. Quality of Care of Medicare Beneficiaries with Acute Myocardial Infarction: Who Is Included in Quality Improvement Measurement? Journal Of The American Geriatrics Society 2003, 51: 466-475. PMID: 12657065, DOI: 10.1046/j.1532-5415.2003.51154.x.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionReperfusion therapyOlder patientsMyocardial infarctionU.S. acute care hospitalsProportion of patientsAcute care hospitalsEffective treatment strategiesMedical record databaseOlder age groupsQuality of careQuality improvement measurementAdmission therapyDischarge therapyCare hospitalACE inhibitorsMedicare patientsTreatment strategiesRetrospective analysisMedicare beneficiariesPatientsEnzyme inhibitorsRecord databaseAge groupsTherapy
2002
Sex differences in cardiac catheterization after acute myocardial infarction: the role of procedure appropriateness.
Rathore SS, Wang Y, Radford MJ, Ordin DL, Krumholz HM. Sex differences in cardiac catheterization after acute myocardial infarction: the role of procedure appropriateness. Annals Of Internal Medicine 2002, 137: 487-93. PMID: 12230349, DOI: 10.7326/0003-4819-137-6-200209170-00008.Peer-Reviewed Original ResearchConceptsCardiac catheterization useAcute myocardial infarctionCardiac catheterizationMyocardial infarctionMultivariable adjustmentEquivocal indicationsSex differencesProcedure useChart-abstracted dataLower crude ratesRisk-standardized ratesU.S. acute care hospitalsDays of hospitalizationAcute care hospitalsClinical guidelinesHospital characteristicsMedicare patientsCrude rateInappropriate treatmentRetrospective analysisCatheterizationInfarctionPatientsElderly personsWomen