Patient AdmissionHospitalizationRetrospective StudiesLength of StayProspective StudiesSchool Admission CriteriaTreatment OutcomeTime FactorsRisk FactorsIntensive Care UnitsGerminal CenterUnited StatesHospital MortalityEmergency Service, HospitalChild Day Care CentersTrauma CentersAcute DiseasePatient ReadmissionTertiary Care CentersFollow-Up StudiesEmergenciesCohort StudiesInfant, NewbornSeverity of Illness IndexPatient DischargeAge FactorsEnglandPrognosisCommunity Health CentersLogistic ModelsHospitals, PsychiatricIncidenceIntensive CareHospitalsBed OccupancyCollege Admission TestInpatientsCommitment of Mentally IllMultivariate AnalysisOutcome Assessment (Health Care)Predictive Value of TestsAdmitting Department, HospitalWounds and InjuriesRegression AnalysisMyocardial InfarctionCritical IllnessIntensive Care Units, PediatricDiagnosis-Related GroupsRisk AssessmentPrevalencePoison Control CentersHospitals, GeneralHospitals, TeachingCenters for Disease Control and Prevention (U.S.)Referral and ConsultationCross-Sectional StudiesSex FactorsPatient TransferUtilization ReviewMedical AuditSurvival AnalysisAge DistributionPoisoningHospital CostsAPACHEStrokeChild, HospitalizedHospitals, UniversityHospitals, PublicHospitals, DistrictEmergency Medical ServicesPregnancyGreat BritainHospitals, UrbanSurvival RateNursing HomesInjury Severity ScoreChi-Square DistributionRehabilitation CentersComorbiditySeasonsRecurrenceHospitals, CommunityHospital UnitsHealth Services MisuseOdds RatioRegistriesLondonPhotosynthetic Reaction Center Complex ProteinsEmergency TreatmentSensitivity and SpecificityOutcome and Process Assessment (Health Care)Databases, FactualScotlandPneumoniaMedical RecordsQuestionnairesSchools, DentalTomography, X-Ray ComputedOntario