National Longitudinal Study of Adolescent HealthLongitudinal StudiesAdolescent Health ServicesHealth BehaviorAdolescent BehaviorAdolescent PsychologyHealth StatusAdolescent MedicineHealth SurveysUnited StatesRisk-TakingHealth PromotionPublic HealthPeer GroupMental HealthSexual BehaviorSocioeconomic FactorsDelivery of Health CareQuestionnairesAttitude to HealthSex FactorsFriendsParent-Child RelationsHealth Knowledge, Attitudes, PracticeCross-Sectional StudiesHealth PolicyAdolescent DevelopmentLogistic ModelsAlcohol DrinkingSchoolsInterpersonal RelationsHealth EducationAge FactorsHealth Services AccessibilityPrevalenceSubstance-Related DisordersSmokingHealth Care ReformHealth Status DisparitiesViolenceRisk FactorsDepressionEducational StatusCrime VictimsHealthHealth Services Needs and DemandHealth Care SurveysSelf ConceptBehavior, AnimalCoitusObesityPrimary Health CareAfrican AmericansResidence CharacteristicsFeeding BehaviorHealth PlanningFamily CharacteristicsHealth ServicesSexually Transmitted DiseasesSocial EnvironmentBody Mass IndexSocial SupportOral HealthQuality of Health CareEuropean Continental Ancestry GroupJuvenile DelinquencyInsurance, HealthSexual PartnersHealth PersonnelWorld HealthPatient Acceptance of Health CareSchool Health ServicesRegression AnalysisParentsHealth Services ResearchPregnancy in AdolescenceSiblingsHispanic AmericansNational Health ProgramsInterviews as TopicSocial ClassSocial BehaviorMultivariate AnalysisReproductive Health ServicesHealth ExpendituresParentingPublic Health AdministrationOccupational HealthRural HealthOdds RatioUrban HealthWomen's HealthEnvironmental HealthMental Health ServicesChild WelfareMotor ActivityCommunity Health ServicesPublic Health PracticeHealth Care RationingOutcome Assessment (Health Care)