Urban PopulationUrban HealthUrbanizationRural PopulationPrevalenceCitiesLithuaniaIndiaCross-Sectional StudiesAge DistributionRural HealthIndians, South AmericanSex DistributionSocioeconomic FactorsRisk FactorsPortugalPovertyEconomic DevelopmentPoverty AreasSex FactorsBrazilPolandUrban Health ServicesCzech RepublicVision, LowBaltimoreChinaRussiaAge FactorsResidence CharacteristicsQuestionnairesIncidenceIranEducational StatusPopulation SurveillanceSampling StudiesHealth SurveysGreeceNew York CityBody Mass IndexRegression AnalysisDeveloping CountriesInfant, NewbornDiabetes MellitusDemographyLogistic ModelsPatient Acceptance of Health CareEthnic GroupsSmokingObesitySeroepidemiologic StudiesIncomeBostonPakistanMarital StatusHealth Services AccessibilitySocial ClassPublic HealthOdds RatioCardiovascular DiseasesPopulation DynamicsLeisure ActivitiesHypertensionAnthropometryHealth Status DisparitiesEnvironmental ExposurePopulation DensityHealth StatusCluster AnalysisEuropean Continental Ancestry GroupAfrican AmericansAlcohol DrinkingDietHealth Knowledge, Attitudes, PracticeLife StyleRegistriesLinear ModelsAfrican Continental Ancestry GroupTime FactorsEpidemiologic MethodsData CollectionAustraliaMortalityFood HabitsStrokeRandom AllocationMass ScreeningPregnancyGeographyUnited StatesChi-Square DistributionCohort StudiesRisk AssessmentMultivariate AnalysisCause of DeathProspective StudiesAsthmaFollow-Up StudiesFecesComorbidity