DementiaDementia, VascularAlzheimer DiseaseDementia, Multi-InfarctLewy Body DiseaseCognition DisordersAIDS Dementia ComplexNeuropsychological TestsEarly DiagnosisDelayed DiagnosisSensitivity and SpecificityCaregiversRisk FactorsPrenatal DiagnosisRetrospective StudiesMagnetic Resonance ImagingBrainCohort StudiesDisabled PersonsAtrophyNursing HomesProspective StudiesMild Cognitive ImpairmentLongitudinal StudiesFollow-Up StudiesCognitionIncidenceAge FactorsPrevalenceDiagnosisUnited StatesSeverity of Illness IndexReproducibility of ResultsPredictive Value of TestsGeriatric AssessmentTime FactorsParkinson DiseaseLewy BodiesAgingDisease ProgressionDiagnostic ErrorsPsychiatric Status Rating ScalesMemory Disorderstau ProteinsApolipoprotein E4Cross-Sectional StudiesNeurofibrillary TanglesTomography, X-Ray ComputedFrontotemporal Lobar DegenerationAutopsyHomes for the AgedPick Disease of the BrainAge of OnsetPsychomotor AgitationQuestionnairesTreatment OutcomeNursing DiagnosisComorbidityBehavioral SymptomsDiagnosis, Computer-AssistedBiopsySex FactorsInstitutionalizationCase-Control StudiesBiological MarkersPrognosisCholinesterase InhibitorsWandering BehaviorResidential FacilitiesAge DistributionTemporal LobeLogistic ModelsDepressionInfant, NewbornHIV InfectionsActivities of Daily LivingMental CompetencyMental DisordersMass ScreeningPlaque, AmyloidEducational StatusROC CurvePolymerase Chain ReactionFrontal LobePopulation SurveillanceRisk AssessmentFatal OutcomeProportional Hazards ModelsAmyloid beta-PeptidesSex DistributionRiskNootropic AgentsPreimplantation DiagnosisPregnancyCerebrovascular DisordersNeurodegenerative DiseasesQuality of LifeAnalysis of VarianceHomeless PersonsPsychometrics