HospitalizationAge FactorsTreatment OutcomeRetrospective StudiesFrail ElderlyRisk FactorsLength of StayHealth Services for the AgedGeriatric AssessmentProspective StudiesFollow-Up StudiesGeriatricsAgingUnited StatesCohort StudiesTime FactorsPatient DischargeHeart FailureComorbidityIncidencePatient ReadmissionRisk AssessmentSurvival RateHip FracturesPrognosisHospital MortalityAge DistributionSurvival AnalysisPatient AdmissionSeverity of Illness IndexMultivariate AnalysisLogistic ModelsMedicareNursing HomesPostoperative ComplicationsInpatientsHealth Care CostsHomes for the AgedHospital CostsProportional Hazards ModelsDeliriumActivities of Daily LivingSex FactorsAcute DiseaseAmbulatory CareChi-Square DistributionAccidental FallsPneumoniaPolypharmacyQuality of LifeKaplan-Meier EstimateInfant, NewbornEmergency Service, HospitalRegistriesPrevalenceChronic DiseaseMyocardial InfarctionCross-Sectional StudiesInfluenza, HumanHousing for the ElderlySex DistributionOutcome Assessment (Health Care)InstitutionalizationBrazilAntineoplastic Combined Chemotherapy ProtocolsJapanIsraelOdds RatioPredictive Value of TestsChild, HospitalizedMorbidityRegression AnalysisDatabases, FactualQuestionnairesHospitals, PsychiatricPatient SelectionDouble-Blind MethodLong-Term CareHome Care ServicesKidney Failure, ChronicRiskCost-Benefit AnalysisCost of IllnessDrug-Related Side Effects and Adverse ReactionsDrug PrescriptionsCosts and Cost AnalysisRecurrenceItalySeasonsPrednisoneQuebecAftercareGeriatric NursingCase-Control StudiesFemoral Neck FracturesStrokeLongitudinal StudiesHospital ChargesDenmarkCognition Disorders