2024
Fibrinolytic Agents in Thromboembolic Diseases: Historical Perspectives and Approved Indications
Rashedi S, Greason C, Sadeghipour P, Talasaz A, O'Donoghue M, Jimenez D, Monreal M, Anderson C, Elkind M, Kreuziger L, Lang I, Goldhaber S, Konstantinides S, Piazza G, Krumholz H, Braunwald E, Bikdeli B. Fibrinolytic Agents in Thromboembolic Diseases: Historical Perspectives and Approved Indications. Seminars In Thrombosis And Hemostasis 2024, 50: 773-789. PMID: 38428841, DOI: 10.1055/s-0044-1781451.Peer-Reviewed Original ResearchST-segment elevation myocardial infarctionTissue plasminogen activatorFood and Drug AdministrationFibrinolytic agentsThromboembolic diseasePlasminogen activatorFood and Drug Administration approvalArterial thromboembolic eventsElevation myocardial infarctionCentral venous access device occlusionPlasma half-lifeU.S. Food and Drug AdministrationAcute ischemic strokePulmonary embolismThromboembolic eventsHemodynamic compromiseDevice occlusionTreated patientsRecanalize occluded vesselsActive protease plasminDrug AdministrationMyocardial infarctionApproved indicationsOccluded vesselIschemic stroke
2021
Changes in ST segment elevation myocardial infarction hospitalisations in China from 2011 to 2015
Zhou T, Li X, Lu Y, Murugiah K, Bai X, Hu S, Gao Y, Masoudi FA, Krumholz HM, Li J, . Changes in ST segment elevation myocardial infarction hospitalisations in China from 2011 to 2015. Open Heart 2021, 8: e001666. PMID: 34599073, PMCID: PMC8488733, DOI: 10.1136/openhrt-2021-001666.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionPrehospital delayMyocardial infarctionSegment elevation myocardial infarctionProportion of patientsElevation myocardial infarctionAcute cardiovascular careAcute myocardial infarctionWeighted national estimateHealth service capacityRisk-adjusted ratesAcute reperfusionEligible patientsHospital deathReperfusion therapyMedical chartsPatient characteristicsHospital treatmentPatient outcomesRandom cohortCardiovascular diseaseCardiovascular carePatientsNational estimatesStandardised definitionsAssociation of Cardiac Care Regionalization With Access, Treatment, and Mortality Among Patients With ST-Segment Elevation Myocardial Infarction
Shen YC, Krumholz H, Hsia RY. Association of Cardiac Care Regionalization With Access, Treatment, and Mortality Among Patients With ST-Segment Elevation Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2021, 14: e007195. PMID: 33641339, PMCID: PMC7969448, DOI: 10.1161/circoutcomes.120.007195.Peer-Reviewed Original ResearchConceptsPercutaneous coronary interventionST-segment elevation myocardial infarction (STEMI) systemsSame-day percutaneous coronary interventionST-segment elevation myocardial infarctionSTEMI regionalizationLong-term mortalityOutcomes of patientsElevation myocardial infarctionPCI-capable hospitalsEmergency medical services agenciesMyocardial infarction systemLocal emergency medical services agenciesPoints greater reductionPercentage point decreasePCI capabilityCoronary interventionMyocardial infarctionAdministrative databasesPatientsSTEMIPoint decreaseMortalityTimely accessReadmissionGreater reductionImpact of ST‐Segment–Elevation Myocardial Infarction Regionalization Programs on the Treatment and Outcomes of Patients Diagnosed With Non–ST‐Segment–Elevation Myocardial Infarction
Montoy JCC, Shen Y, Brindis RG, Krumholz HM, Hsia RY. Impact of ST‐Segment–Elevation Myocardial Infarction Regionalization Programs on the Treatment and Outcomes of Patients Diagnosed With Non–ST‐Segment–Elevation Myocardial Infarction. Journal Of The American Heart Association 2021, 10: e016932. PMID: 33470136, PMCID: PMC7955417, DOI: 10.1161/jaha.120.016932.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCaliforniaCoronary AngiographyEarly DiagnosisElectrocardiographyFemaleFollow-Up StudiesHospitalizationHumansMaleMiddle AgedNon-ST Elevated Myocardial InfarctionPercutaneous Coronary InterventionPrognosisProgram EvaluationRegistriesRetrospective StudiesRisk FactorsST Elevation Myocardial InfarctionSurvival RateTreatment OutcomeConceptsOutcomes of patientsEarly angiographyMyocardial infarctionST segmentST-segment elevation myocardial infarctionSegment elevation myocardial infarctionProportion of patientsElevation myocardial infarctionRisk of deathRisk of mortalityRegionalization programIndex admissionEmergency departmentRegionalized careNonfederal hospitalsMAIN OUTCOMETimely carePatientsAngiographyOverall populationNSTEMIInfarctionStudy periodMortalityCare
2020
Evaluation of STEMI Regionalization on Access, Treatment, and Outcomes Among Adults Living in Nonminority and Minority Communities
Hsia RY, Krumholz H, Shen YC. Evaluation of STEMI Regionalization on Access, Treatment, and Outcomes Among Adults Living in Nonminority and Minority Communities. JAMA Network Open 2020, 3: e2025874. PMID: 33196809, PMCID: PMC7670311, DOI: 10.1001/jamanetworkopen.2020.25874.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBlack or African AmericanCaliforniaCause of DeathCohort StudiesFemaleHealth Services AccessibilityHealthcare DisparitiesHispanic or LatinoHospitalizationHumansMaleMiddle AgedMinority GroupsMortalityNon-Randomized Controlled Trials as TopicPercutaneous Coronary InterventionRegional Medical ProgramsResidence CharacteristicsST Elevation Myocardial InfarctionTime-to-TreatmentWhite PeopleConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionPercutaneous coronary interventionPCI-capable hospitalsZip codesNon-Hispanic whitesPatient's countyCause mortalityCohort studyCoronary interventionPCI hospitalsPCI treatmentWhite patientsCapable hospitalsMyocardial infarctionTop tertileInpatient dataMAIN OUTCOMEPatientsSTEMI regionalizationSmall improvementHospitalPotential mechanismsSame dayHispanic populationNational Trends in Emergency Department Care Processes for Acute Myocardial Infarction in the United States, 2005 to 2015
Pendyal A, Rothenberg C, Scofi JE, Krumholz HM, Safdar B, Dreyer RP, Venkatesh AK. National Trends in Emergency Department Care Processes for Acute Myocardial Infarction in the United States, 2005 to 2015. Journal Of The American Heart Association 2020, 9: e017208. PMID: 33047624, PMCID: PMC7763391, DOI: 10.1161/jaha.120.017208.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionAcute myocardial infarctionMedian ED lengthUS emergency departmentsEmergency departmentED visitsMyocardial infarctionED administrationED lengthAMI careNational Hospital Ambulatory Medical Care SurveyCare processesAmbulatory Medical Care SurveyEvidence-based medicationsNonaspirin antiplatelet agentsEarly invasive strategyAnnual ED visitsRegionalization of careED care processesReal-world trendsAntiplatelet therapyAnnual incidenceAntiplatelet agentsYearly incidenceCare SurveyRevascularization Practices and Outcomes in Patients With Multivessel Coronary Artery Disease Who Presented With Acute Myocardial Infarction and Cardiogenic Shock in the US, 2009-2018
Khera R, Secemsky EA, Wang Y, Desai NR, Krumholz HM, Maddox TM, Shunk KA, Virani SS, Bhatt DL, Curtis J, Yeh RW. Revascularization Practices and Outcomes in Patients With Multivessel Coronary Artery Disease Who Presented With Acute Myocardial Infarction and Cardiogenic Shock in the US, 2009-2018. JAMA Internal Medicine 2020, 180: 1317-1327. PMID: 32833024, PMCID: PMC9377424, DOI: 10.1001/jamainternmed.2020.3276.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedCohort StudiesCoronary VesselsFemaleFollow-Up StudiesHospital MortalityHumansMaleMiddle AgedMyocardial InfarctionPatient DischargePercutaneous Coronary InterventionRisk AssessmentRisk FactorsShock, CardiogenicST Elevation Myocardial InfarctionTime FactorsTreatment OutcomeUnited StatesConceptsST-segment elevation myocardial infarctionMultivessel percutaneous coronary interventionMultivessel coronary artery diseasePercutaneous coronary interventionAcute myocardial infarctionCoronary artery diseaseCulprit vessel percutaneous coronary interventionCardiogenic shockHospital mortalityArtery diseaseMyocardial infarctionCohort studyPrimary outcomeHospital variationPCI strategyMedicare beneficiariesUnderwent multivessel PCISignificant hospital variationElevation myocardial infarctionSubset of patientsHigh-risk populationRecent evidenceHospital complicationsPCI useRevascularization practice
2019
Thirty-Day Hospital Readmission After Acute Myocardial Infarction in China
Li J, Dharmarajan K, Bai X, Masoudi FA, Spertus JA, Li X, Zheng X, Zhang H, Yan X, Dreyer RP, Krumholz HM, Group F. Thirty-Day Hospital Readmission After Acute Myocardial Infarction in China. Circulation Cardiovascular Quality And Outcomes 2019, 12: e005628. PMID: 31092023, DOI: 10.1161/circoutcomes.119.005628.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionUnplanned cardiovascular readmissionsDays of dischargeMyocardial infarctionCardiovascular readmissionCause readmissionMost readmissionsLower riskFit Cox proportional hazards modelsST-segment elevation myocardial infarctionAcute Coronary Events (GRACE) scoreThirty-day hospital readmissionsDisease-specific health statusCox proportional hazards modelVentricular ejection fractionProportional hazards modelLow social supportBackground ReadmissionRecurrent anginaCardiovascular eventsHospital complicationsUnplanned readmissionIndex hospitalizationClinical factorsConsecutive patients
2018
Sex 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
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 segmentQuality of Care in Chinese Hospitals: Processes and Outcomes After ST‐segment Elevation Myocardial Infarction
Downing NS, Wang Y, Dharmarajan K, Nuti SV, Murugiah K, Du X, Zheng X, Li X, Li J, Masoudi FA, Spertus JA, Jiang L, Krumholz HM. Quality of Care in Chinese Hospitals: Processes and Outcomes After ST‐segment Elevation Myocardial Infarction. Journal Of The American Heart Association 2017, 6: e005040. PMID: 28645937, PMCID: PMC5669155, DOI: 10.1161/jaha.116.005040.Peer-Reviewed Original ResearchConceptsST-elevation myocardial infarctionRisk-standardized mortality ratesQuality of careGuideline-recommended careGuideline-recommended treatmentMyocardial infarctionMortality rateST-segment elevation myocardial infarctionChina PEACE-Retrospective AMI StudyComposite rateMedian risk-standardized mortality rateProportion of patientsElevation myocardial infarctionQuality improvement initiativesProportion of opportunitiesDefect-free rateHospital levelInfarctionHospitalChinese hospitalsPatientsCareAMI studyImprovement initiativesHigh rate
2016
China PEACE risk estimation tool for in-hospital death from acute myocardial infarction: an early risk classification tree for decisions about fibrinolytic therapy
Li X, Li J, Masoudi FA, Spertus JA, Lin Z, Krumholz HM, Jiang L. China PEACE risk estimation tool for in-hospital death from acute myocardial infarction: an early risk classification tree for decisions about fibrinolytic therapy. BMJ Open 2016, 6: e013355. PMID: 27798032, PMCID: PMC5093680, DOI: 10.1136/bmjopen-2016-013355.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionAcute myocardial infarctionFibrinolytic therapyLow-risk groupMyocardial infarctionHospital deathHospital mortalitySegment elevation myocardial infarctionCardiac Events (PEACE) studyHospital death riskComposite of deathElevation myocardial infarctionSystolic blood pressureTime of presentationRelative risk reductionCross-sectional studyBaseline mortality riskAcute reperfusionMajor bleedingReperfusion therapyBlood pressureDerivation cohortStudy cohortChina PatientValidation cohortEditor’s Choice-Sex differences in young patients with acute myocardial infarction: A VIRGO study analysis
Bucholz EM, Strait KM, Dreyer RP, Lindau ST, D’Onofrio G, Geda M, Spatz ES, Beltrame JF, Lichtman JH, Lorenze NP, Bueno H, Krumholz HM. Editor’s Choice-Sex differences in young patients with acute myocardial infarction: A VIRGO study analysis. European Heart Journal Acute Cardiovascular Care 2016, 6: 610-622. PMID: 27485141, PMCID: PMC5459677, DOI: 10.1177/2048872616661847.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionYoung womenTime of AMIST-segment elevation myocardial infarctionHigh clinical risk scoreSegment elevation myocardial infarctionChronic obstructive pulmonary diseaseYoung AMI patientsCardiovascular risk factorsClinical risk scorePre-hospital delayProspective cohort studyCongestive heart failureElevation myocardial infarctionObstructive pulmonary diseaseHigh-risk populationYoung menMental health statusElectrocardiogram findingsMorbid obesityCardiovascular riskCohort studyRenal failureYounger patientsSex Differences in Clinical Profiles and Quality of Care Among Patients With ST‐Segment Elevation Myocardial Infarction From 2001 to 2011: Insights From the China Patient‐Centered Evaluative Assessment of Cardiac Events (PEACE)‐Retrospective Study
Du X, Spatz ES, Dreyer RP, Hu S, Wu C, Li X, Li J, Wang S, Masoudi FA, Spertus JA, Nasir K, Krumholz HM, Jiang L, Group F. Sex Differences in Clinical Profiles and Quality of Care Among Patients With ST‐Segment Elevation Myocardial Infarction From 2001 to 2011: Insights From the China Patient‐Centered Evaluative Assessment of Cardiac Events (PEACE)‐Retrospective Study. Journal Of The American Heart Association 2016, 5: e002157. PMID: 26903002, PMCID: PMC4802449, DOI: 10.1161/jaha.115.002157.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionQuality of careEvidence-based therapiesMyocardial infarctionClinical profileHospitalization ratesST-segment elevation myocardial infarction presentationSex differencesMyocardial infarction presentationYounger age groupsProportion of womenMyocardial infarction hospitalizationsEarly aspirinHospital deathCardiac eventsHospital admissionMedian ageSymptom onsetChina PatientRetrospective studyAdmission timeHigh riskSex disparitiesPatientsFibrinolytic therapy in hospitals without percutaneous coronary intervention capabilities in China from 2001 to 2011: China PEACE-retrospective AMI study
Li J, Li X, Ross JS, Wang Q, Wang Y, Desai NR, Xu X, Nuti SV, Masoudi FA, Spertus JA, Krumholz HM, Jiang L, Group F. Fibrinolytic therapy in hospitals without percutaneous coronary intervention capabilities in China from 2001 to 2011: China PEACE-retrospective AMI study. European Heart Journal Acute Cardiovascular Care 2016, 6: 232-243. PMID: 26787648, DOI: 10.1177/2048872615626656.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionFibrinolytic therapyMyocardial infarctionPercutaneous coronary intervention capabilitySequential cross-sectional studiesChina PEACE-Retrospective AMI StudyPrimary reperfusion strategyPercutaneous coronary interventionLittle clinical evidenceCross-sectional studyQuality of careTwo-stage random samplingCoronary interventionHospital delayNeedle timeReperfusion strategySymptom onsetTherapy useClinical evidenceEmergency departmentMedian admissionIdeal patientPatientsWeighted proportion
2015
10 year trends in urban–rural disparities in treatments and outcomes after ST-elevation myocardial infarction in China: insights from the China PEACE-Retrospective Acute Myocardial Infarction Study
Li X, Murugiah K, Li J, Wang Q, Hu S, Masoudi F, Spertus J, Downing N, Chan P, Krumholz H, Jiang L, Group C. 10 year trends in urban–rural disparities in treatments and outcomes after ST-elevation myocardial infarction in China: insights from the China PEACE-Retrospective Acute Myocardial Infarction Study. The Lancet 2015, 386: s2. DOI: 10.1016/s0140-6736(15)00580-2.Peer-Reviewed Original ResearchST-segment elevation myocardial infarctionCase of STEMIUrban hospitalRural hospitalsMyocardial infarctionAcute Myocardial Infarction StudyST-elevation myocardial infarctionMedical chart abstractionACEI/ARBMyocardial Infarction StudyElevation myocardial infarctionMedical record abstractionAdjusted odds ratioCertain clinical conditionsTwo-stage random sampling designQuality of careRisk-adjusted ratesCompleteness of documentationHospital complicationsHospital mortalityHospital deathReperfusion therapyChart abstractionComposite outcomeFamily Planning CommissionSex Differences in Reperfusion in Young Patients With ST-Segment–Elevation Myocardial Infarction
D'Onofrio G, Safdar B, Lichtman JH, Strait KM, Dreyer RP, Geda M, Spertus JA, Krumholz HM. Sex Differences in Reperfusion in Young Patients With ST-Segment–Elevation Myocardial Infarction. Circulation 2015, 131: 1324-1332. PMID: 25792558, PMCID: PMC4652789, DOI: 10.1161/circulationaha.114.012293.Peer-Reviewed Original ResearchConceptsST-segment elevation myocardial infarctionMyocardial infarctionReperfusion therapyAcute ST-segment elevation myocardial infarctionProspective observational cohort studyYoung AMI Patients (VIRGO) studyTime guidelinesYoung womenObservational cohort studyProportion of patientsElevation myocardial infarctionPercutaneous coronary interventionYears of ageSex differencesPatients 18Reperfusion strategyCohort studyCoronary interventionFibrinolytic therapyNeedle timeYounger patientsReperfusion delayRatio of womenReperfusion guidelinesSex disparities
2014
Age-specific gender differences in early mortality following ST-segment elevation myocardial infarction in China
Zheng X, Dreyer RP, Hu S, Spatz ES, Masoudi FA, Spertus JA, Nasir K, Li X, Li J, Wang S, Krumholz HM, Jiang L. Age-specific gender differences in early mortality following ST-segment elevation myocardial infarction in China. Heart 2014, 101: 349. PMID: 25510395, PMCID: PMC4453015, DOI: 10.1136/heartjnl-2014-306456.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAge FactorsAgedAged, 80 and overChinaDrug UtilizationFemaleHospital MortalityHumansHydroxymethylglutaryl-CoA Reductase InhibitorsMaleMiddle AgedMyocardial InfarctionMyocardial RevascularizationPercutaneous Coronary InterventionPlatelet Aggregation InhibitorsRetrospective StudiesRural PopulationSex FactorsUrban PopulationConceptsST-segment elevation myocardial infarctionElevation myocardial infarctionGender-age interactionHospital mortalityEarly mortalityMyocardial infarctionChina PEACE-Retrospective AMI StudyHospital mortality rateYears of ageAge-specific gender differencesPatient characteristicsHospital characteristicsMultivariable modelMortality rateGender differencesChinese populationMortalityYounger groupChinese hospitalsWomenAMI studyMenInfarctionAgeRepresentative sampleDesign and Rationale of Gulf locals with Acute Coronary Syndrome Events (Gulf Coast) Registry
Zubaid M, Thani KB, Rashed W, Alsheikh-Ali A, Alrawahi N, Ridha M, Akbar M, Alenezi F, Alhamdan R, Almahmeed W, Ouda H, Al-Mulla A, Baslaib F, Shehab A, Alnuaimi A, Amin H, Krumholz HM, . Design and Rationale of Gulf locals with Acute Coronary Syndrome Events (Gulf Coast) Registry. The Open Cardiovascular Medicine Journal 2014, 8: 88-93. PMID: 25328551, PMCID: PMC4197526, DOI: 10.2174/1874192401408010088.Peer-Reviewed Original ResearchAcute coronary syndromeST-segment elevation myocardial infarctionElevation myocardial infarctionMyocardial infarctionRisk profileBundle branch block myocardial infarctionDiagnosis of ACSSegment elevation myocardial infarctionCardiovascular risk profileGulf COAST registryHistory of hypertensionOne-year outcomesPast medical historyEvent registryHigh-risk profileActive smokingHospital presentationCoronary syndromePatient demographicsUnstable anginaDischarge diagnosisMean ageTherapeutic managementPhysical findingsMedical historyST-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