PrevalenceChild WelfareDisabled ChildrenChild BehaviorCross-Sectional StudiesRisk FactorsAge FactorsChild Health ServicesChild RearingChild, InstitutionalizedChild Behavior DisordersQuestionnairesChild PsychologyAge DistributionChild of Impaired ParentsUnited StatesChild, OrphanedDental Care for ChildrenSex FactorsParentsBrazilSex DistributionChild Nutrition DisordersSocioeconomic FactorsRural PopulationRetrospective StudiesHealth SurveysInfant, NewbornChild Nutritional Physiological PhenomenaUrban PopulationProspective StudiesIndiaIncidenceChild LanguageLogistic ModelsChild MortalityMothersAsthmaFollow-Up StudiesObesityPregnancyChinaSeverity of Illness IndexCase-Control StudiesHIV InfectionsTime FactorsLongitudinal StudiesBody Mass IndexSchoolsFecesParent-Child RelationsOdds RatioComorbiditySmokingTreatment OutcomeBody HeightOverweightMass ScreeningEpidemiologic MethodsSeasonsRespiratory SoundsTurkeyChi-Square DistributionUrban HealthNutritional StatusRegression AnalysisChronic DiseaseChild Development Disorders, PervasiveAnthropometryMultivariate AnalysisMexicoRisk AssessmentGenotypeDiarrheaPolymerase Chain ReactionFamily CharacteristicsEthnic GroupsNigeriaPovertyDental CariesSouth AfricaCohort StudiesSocial ClassPopulation SurveillancePediatricsJapanEnglandSensitivity and SpecificityIntestinal Diseases, ParasiticIranGreat BritainGrowth DisordersChild CustodyEuropean Continental Ancestry GroupKenyaItalyFamilySpainDeveloping CountriesMalnutrition