Hospital ChargesLength of StayHospital CostsFees and ChargesHospitalizationEconomics, HospitalHospitals, TeachingHospitals, UrbanHospitals, PediatricUnited StatesPatient DischargeHealth Care CostsCosts and Cost AnalysisHealth ResourcesRetrospective StudiesCritical PathwaysDiagnosis-Related GroupsEmergency Service, HospitalPatient AdmissionHospital MortalityHospitals, UniversityHospitals, GeneralCost-Benefit AnalysisMarylandDecision TreesDatabases, FactualMedicareNursing Staff, HospitalOutcome Assessment (Health Care)Infant, NewbornHospitals, RuralWounds and InjuriesTreatment OutcomePostoperative ComplicationsTime FactorsIncidenceHospitalsAccidents, TrafficHospitals, SpecialHospital Bed CapacityDelivery of Health CareHospitals, DistrictHealth PersonnelProspective StudiesHospitals, PrivateRisk FactorsMultivariate AnalysisFinancial Management, HospitalRegression AnalysisCohort StudiesRisk AssessmentSeverity of Illness IndexAge FactorsHospital PlanningHospital DepartmentsHospitals, Psychiatric