Puerto RicoHispanic AmericansCubaCosta RicaDominican RepublicBostonNew York CityAcculturationMexican AmericansAlbinism, OculocutaneousAllostasisVitamin B DeficiencyMassachusettsAsthmaConnecticutCentral AmericaMexicoUnited StatesCulturePrevalenceEthnic GroupsSocioeconomic FactorsTransients and MigrantsAfrican AmericansEuropean Continental Ancestry GroupHermanski-Pudlak SyndromePovertyQuestionnairesRisk FactorsNew YorkLongitudinal StudiesLogistic ModelsCross-Sectional StudiesRisk-TakingCommunity-Based Participatory ResearchEmigration and ImmigrationHealth Status DisparitiesSex FactorsInterviews as TopicUrban PopulationHealth Knowledge, Attitudes, PracticePolymorphism, Single NucleotideDietInfant MortalitySubstance-Related DisordersSubstance Abuse, IntravenousSmokingHealth SurveysEducational StatusGenotypeParentsMultivariate AnalysisGene FrequencyStress, PsychologicalHIV InfectionsAfrican Continental Ancestry GroupInfant, NewbornDepressionMental DisordersCaregiversPregnancySeverity of Illness IndexBody Mass IndexAge FactorsObesityHealth StatusAlcohol DrinkingDiabetes MellitusCohort StudiesComorbidity