MortalityTreatment OutcomeHospital MortalityInfant MortalityOutcome Assessment (Health Care)Retrospective StudiesCause of DeathFollow-Up StudiesProspective StudiesPregnancy OutcomeTime FactorsCohort StudiesPrognosisSurvival AnalysisChild MortalityMaternal MortalitySurvival RateProportional Hazards ModelsInfant, NewbornRisk AssessmentUnited StatesRisk FactorsAge FactorsOutcome and Process Assessment (Health Care)IncidencePredictive Value of TestsPostoperative ComplicationsSeverity of Illness IndexMultivariate AnalysisPregnancyKaplan-Meier EstimateCardiovascular DiseasesRegistriesLogistic ModelsSex FactorsLength of StayPerinatal MortalityMortality, PrematureAge DistributionMyocardial InfarctionRandomized Controlled Trials as TopicRegression AnalysisMorbidityNeoplasmsStrokeSex DistributionRiskChi-Square DistributionLongitudinal StudiesFetal MortalityRecurrenceOdds RatioDeath CertificatesAcute DiseaseLife ExpectancyIntensive Care UnitsBiological MarkersPoisson DistributionEpidemiologic MethodsEnglandKidney Failure, ChronicRenal DialysisConfidence IntervalsPrevalenceHeart FailureGreat BritainChronic DiseaseQuality of LifeSepsisGlasgow Outcome ScaleSmokingReoperationJapanEuropeCritical IllnessSwedenModels, StatisticalWalesPopulation SurveillancePregnancy ComplicationsFetal DeathOccupational DiseasesDisease ProgressionRecovery of FunctionHealth StatusCross-Sectional StudiesResearch DesignComorbidityNetherlandsWounds and InjuriesReproducibility of ResultsCoronary Artery BypassDeveloping CountriesRisk AdjustmentPatient Outcome AssessmentIntensive CareAnalysis of VarianceCase-Control StudiesDiabetes MellitusItaly