HospitalizationMortalityHospital MortalityInfant MortalityRetrospective StudiesLength of StayCause of DeathCohort StudiesUnited StatesTreatment OutcomeProspective StudiesFollow-Up StudiesTime FactorsRisk FactorsInfant, NewbornIncidenceProportional Hazards ModelsAge FactorsRisk AssessmentChild MortalityHeart FailureAge DistributionMaternal MortalitySurvival AnalysisPatient DischargeSurvival RatePatient ReadmissionPrognosisComorbiditySeverity of Illness IndexMultivariate AnalysisSex DistributionPatient AdmissionRegistriesSex FactorsCardiovascular DiseasesHospital CostsPneumoniaLogistic ModelsPoisson DistributionMorbidityHealth Care CostsSeasonsMyocardial InfarctionRiskKaplan-Meier EstimatePredictive Value of TestsInpatientsRegression AnalysisAmbulatory CareAcute DiseaseDenmarkPostoperative ComplicationsChild, HospitalizedMortality, PrematurePopulation SurveillanceDatabases, FactualMedicareInfluenza, HumanOdds RatioPrevalenceRenal DialysisEmergency Service, HospitalConfidence IntervalsChronic DiseaseHospital ChargesBrazilWounds and InjuriesOutcome Assessment (Health Care)Cost of IllnessKidney Failure, ChronicPerinatal MortalityIntensive Care UnitsChi-Square DistributionEpidemiologic MethodsNeoplasmsSpainCaliforniaLongitudinal StudiesDeath CertificatesStrokeRespiratory Tract DiseasesNew YorkSwedenIsraelInternational Classification of DiseasesHospitals, PsychiatricFetal MortalityItalyCost-Benefit AnalysisPulmonary Disease, Chronic ObstructiveLife ExpectancyCanadaGastroenteritisRotavirus InfectionsSepsisRandomized Controlled Trials as TopicCosts and Cost AnalysisPregnancyBiological Markers