Hospital MortalityMortalityIntensive Care UnitsRetrospective StudiesLength of StayHospitals, TeachingAPACHETime FactorsCritical IllnessTreatment OutcomeProspective StudiesHospitals, UniversityPatient AdmissionPostoperative ComplicationsIntensive CareHospital CostsCohort StudiesRisk FactorsInfant MortalityHospitals, GeneralFollow-Up StudiesCause of DeathHospital Bed CapacityLogistic ModelsRisk AdjustmentRisk AssessmentHospitals, Low-VolumeUnited StatesHospitalizationSepsisMyocardial InfarctionSurvival AnalysisSurvival RateSeverity of Illness IndexPrognosisHospitals, High-VolumeRespiration, ArtificialAge FactorsHospitals, UrbanHospitals, Group PracticeNursing Staff, HospitalSurgery Department, HospitalEmergenciesMultivariate AnalysisCoronary Artery BypassEpidemiologic MethodsAcute DiseaseEconomics, HospitalInfant, NewbornEmergency Service, HospitalIncidenceHospitalsCritical CareChi-Square DistributionHospitals, PediatricDiagnosis-Related GroupsPatient DischargeSurgical Procedures, OperativeHospitals, SpecialOutcome Assessment (Health Care)Hospitals, DistrictAcute Kidney InjuryPredictive Value of TestsCardiology Service, HospitalCenters for Medicare and Medicaid Services (U.S.)RegistriesCardiac Surgical ProceduresHospitals, PrivateEnglandMultiple Organ FailureChild MortalityMaternal MortalityQuality of Health CareCross InfectionProportional Hazards ModelsOdds RatioHeart Valve ProsthesisComorbidityAortic AneurysmFinancial Management, HospitalShock, SepticSex FactorsHeart Valve Prosthesis ImplantationHospital ChargesAge DistributionBrazilSurgical Procedures, ElectiveRegression AnalysisMedical Records Department, HospitalReoperationPneumoniaHospital PlanningQuality Indicators, Health CareInpatientsTrauma Severity IndicesPatient ReadmissionShockMorbidityKaplan-Meier EstimateCardiovascular Surgical Procedures