Disabled PersonsAgingAge FactorsUnited StatesHomeless PersonsMentally Ill PersonsQuestionnairesHIV InfectionsSex FactorsVisually Impaired PersonsIncidenceCross-Sectional StudiesMentally Disabled PersonsCohort StudiesTime FactorsRisk FactorsPopulation SurveillanceFollow-Up StudiesProspective StudiesPrevalenceSocioeconomic FactorsDisease OutbreaksInfant, NewbornLogistic ModelsAnalysis of VarianceHealth SurveysSex DistributionRetrospective StudiesSmokingRegression AnalysisHealth StatusSingle PersonRisk AssessmentUrban PopulationRisk-TakingInterviews as TopicReference ValuesRural PopulationHealth Knowledge, Attitudes, PracticeTreatment OutcomeAge DistributionInterpersonal RelationsLongitudinal StudiesSubstance-Related DisordersRiskReproducibility of ResultsMultivariate AnalysisAcquired Immunodeficiency SyndromeDietExerciseSeasonsSeverity of Illness IndexPregnancyComorbidityWounds and InjuriesBody WeightData CollectionCaliforniaMental DisordersMass ScreeningOdds RatioEducational StatusNeuropsychological TestsChronic DiseaseResidence CharacteristicsDementiaNetherlandsAfrican Continental Ancestry GroupHospitalizationSelf ConceptAttitude to HealthVaccinationAlcohol DrinkingGeriatric AssessmentCognition DisordersEthnic GroupsAfrican AmericansDemographyNew York CityFinlandCaregiversPersonhoodDepressionObesityLinear ModelsCognitionSocial SupportHousingFamilySwedenMilitary PersonnelFamous PersonsAccidental FallsBlood PressureSpinal Cord InjuriesTravelMagnetic Resonance ImagingConnecticutHealth Services AccessibilityGenotype