ComorbidityMental DisordersUnited StatesDiagnostic and Statistical Manual of Mental DisordersAnxiety DisordersMood DisordersPrevalenceRisk FactorsRetrospective StudiesAge FactorsSeverity of Illness IndexCohort StudiesDiagnosis, Dual (Psychiatry)Substance-Related DisordersRisk AdjustmentPsychiatric Status Rating ScalesMedicareTreatment OutcomeDepressive DisorderProspective StudiesChronic DiseaseTime FactorsVeteransLogistic ModelsPhobic DisordersHealth SurveysCross-Sectional StudiesDepressive Disorder, MajorPersonality DisordersFollow-Up StudiesImpulse Control DisordersAlcoholismInterview, PsychologicalHospitalizationDepressionQuestionnairesPrognosisRisk AssessmentStress Disorders, Post-TraumaticSex FactorsSurvival RateProportional Hazards ModelsMultivariate AnalysisBipolar DisorderConduct DisorderPanic DisorderRegistriesObsessive-Compulsive DisorderPredictive Value of TestsAttention Deficit Disorder with HyperactivityQuality of LifeSurvival AnalysisLongitudinal StudiesAge of OnsetRegression AnalysisInternational Classification of DiseasesDenmarkKidney Failure, ChronicRenal DialysisOdds RatioUnited States Department of Veterans AffairsHospital MortalitySocioeconomic FactorsDisability EvaluationNetherlandsDiabetes MellitusOutcome Assessment (Health Care)United States Food and Drug AdministrationHealth StatusHealth Status IndicatorsChi-Square DistributionLength of StayEligibility DeterminationDatabases, FactualActivities of Daily LivingIncidenceInsurance Claim ReviewAnxietyCenters for Medicare and Medicaid Services (U.S.)Diseases in TwinsPatient SelectionReproducibility of ResultsCause of DeathMolecular Sequence DataGeriatric AssessmentInsanity DefenseObsessive HoardingInsurance BenefitsEating DisordersAgoraphobiaLegislation, DrugMigraine DisordersAntisocial Personality DisorderSomatoform DisordersDemographyAttention Deficit and Disruptive Behavior DisordersSpainPeritoneal DialysisCase-Control StudiesMedical Records