Disabled PersonsNeeds AssessmentHealth Services Needs and DemandUnited StatesHomeless PersonsRisk FactorsMentally Ill PersonsQuestionnairesVisually Impaired PersonsMentally Disabled PersonsHIV InfectionsPrevalenceCross-Sectional StudiesAge FactorsIncidencePopulation SurveillanceCohort StudiesTime FactorsSex FactorsDisease OutbreaksProspective StudiesSocioeconomic FactorsFollow-Up StudiesLongitudinal StudiesAge DistributionHealth Services AccessibilityHealth StatusRetrospective StudiesTreatment OutcomeInterviews as TopicHealth SurveysData CollectionRisk AssessmentReproducibility of ResultsHealth Knowledge, Attitudes, PracticeLogistic ModelsInfant, NewbornQuality of LifeCaregiversChronic DiseaseRural PopulationAgingSex DistributionAcquired Immunodeficiency SyndromeDementiaMental DisordersSingle PersonGeriatric AssessmentSeverity of Illness IndexSocial SupportAttitude to HealthMass ScreeningComorbidityUrban PopulationHealth Services for the AgedHospitalizationRegression AnalysisPersonhoodNetherlandsIndiaCaliforniaResidence CharacteristicsWounds and InjuriesSensitivity and SpecificityRiskNeoplasmsEthnic GroupsGreat BritainMultivariate AnalysisPilot ProjectsSpinal Cord InjuriesPublic HealthTravelQualitative ResearchHealth Care SurveysPatient Acceptance of Health CareCost of IllnessFrail ElderlyCanadaDemographyDelivery of Health CareHousingWisconsinFamilyDisability EvaluationCognition DisordersGermanyNursing HomesInterpersonal RelationsTuberculosisVaccinationRefugeesOdds RatioPatient Education as TopicEducational StatusCenters for Disease Control and Prevention (U.S.)Diabetes MellitusDepressionCommunity Health ServicesNew York City