Retrospective StudiesTreatment OutcomeRisk FactorsFollow-Up StudiesTime FactorsCohort StudiesPrognosisIncidencePostoperative ComplicationsInfant, NewbornSurvival RatePrevalenceSurvival AnalysisLength of StayRisk AssessmentPregnancyAge FactorsSeverity of Illness IndexAge DistributionMultivariate AnalysisChi-Square DistributionRecurrencePredictive Value of TestsSensitivity and SpecificityTomography, X-Ray ComputedLogistic ModelsNeoplasm StagingHospitalizationSex FactorsQuestionnairesKaplan-Meier EstimateUnited StatesEnglandHong KongSex DistributionGreat BritainFranceReproducibility of ResultsIndiaCross-Sectional StudiesProspective StudiesHospitals, UniversityMedical RecordsComorbidityNeoplasm Recurrence, LocalReoperationTertiary Care CentersChinaBrazilOutcome Assessment (Health Care)Hospitals, TeachingCombined Modality TherapyDog DiseasesProportional Hazards ModelsPregnancy OutcomeChronic DiseaseStatistics, NonparametricCase-Control StudiesBiopsyDisease-Free SurvivalOdds RatioJapanRegression AnalysisWounds and InjuriesDisease ProgressionNigeriaMagnetic Resonance ImagingHIV InfectionsAnti-Bacterial AgentsMedical AuditRomaniaHospital MortalityAcute DiseaseMalaysiaTurkeySocioeconomic FactorsItalyReferral and ConsultationDatabases, FactualVisual AcuityEmergency Service, HospitalAccidental FallsCause of DeathLondonEpidemiologic MethodsIntensive Care UnitsPatient SelectionScotlandFracture Fixation, InternalLongitudinal StudiesRegistriesRecovery of FunctionPatient AdmissionDrug Therapy, CombinationAnalysis of VarianceTreatment FailureOntarioTunisiaIntraoperative ComplicationsSeasons