Patient AdmissionHospitalizationRetrospective StudiesLength of StaySchool Admission CriteriaProspective StudiesGerminal CenterIntensive Care UnitsTime FactorsTreatment OutcomeHospital MortalityEmergency Service, HospitalChild Day Care CentersRisk FactorsTrauma CentersTertiary Care CentersPatient ReadmissionEmergenciesAcute DiseasePatient DischargeEnglandSeverity of Illness IndexCohort StudiesUnited StatesCommunity Health CentersHospitals, PsychiatricInfant, NewbornIntensive CareFollow-Up StudiesPrognosisCollege Admission TestBed OccupancyCommitment of Mentally IllAge FactorsHospitalsInpatientsAdmitting Department, HospitalLogistic ModelsOutcome Assessment (Health Care)IncidenceIntensive Care Units, PediatricCritical IllnessPredictive Value of TestsPoison Control CentersWounds and InjuriesCenters for Disease Control and Prevention (U.S.)Hospitals, GeneralRisk AssessmentDiagnosis-Related GroupsMyocardial InfarctionPatient TransferHospitals, TeachingMultivariate AnalysisReferral and ConsultationMedical AuditHospitals, DistrictRegression AnalysisGreat BritainAPACHEChild, HospitalizedPoisoningUtilization ReviewHospital CostsStrokeHospitals, PublicEmergency Medical ServicesLondonHospitals, UniversityInjury Severity ScorePhotosynthetic Reaction Center Complex ProteinsRehabilitation CentersHospital UnitsPneumoniaScotlandAge DistributionHealth Services MisuseHospitals, UrbanDatabases, FactualSeasonsEmergency TreatmentPrevalenceInformation CentersNursing HomesComorbidityOutcome and Process Assessment (Health Care)Hospitals, CommunitySensitivity and SpecificitySex FactorsCoronary Care UnitsBiological MarkersSurvival RateRegistriesSurvival AnalysisHospital DepartmentsMedical RecordsChi-Square DistributionDiagnostic Tests, RoutineTomography, X-Ray ComputedTriageCritical Care