Odds RatioCase-Control StudiesLogistic ModelsRisk FactorsConfidence IntervalsCohort StudiesGenetic Predisposition to DiseasePrevalenceCross-Sectional StudiesMultivariate AnalysisGenotypeProspective StudiesRetrospective StudiesPolymorphism, Single NucleotidePolymorphism, GeneticRisk AssessmentSmokingUnited StatesQuestionnairesPregnancyAge FactorsTreatment OutcomeRiskSex FactorsInfant, NewbornEuropean Continental Ancestry GroupRegression AnalysisFollow-Up StudiesTime FactorsSocioeconomic FactorsGene Frequency