Multivariate AnalysisChromatography, Micellar Electrokinetic CapillaryPrincipal Component AnalysisData Interpretation, StatisticalModels, StatisticalAlgorithmsBrainPrognosisRisk FactorsRetrospective StudiesLogistic ModelsTreatment OutcomeProspective StudiesFollow-Up StudiesSurvival AnalysisProportional Hazards ModelsPredictive Value of TestsSurvival RateCohort StudiesTime FactorsRegression AnalysisAge FactorsCross-Sectional StudiesKaplan-Meier EstimateNeoplasm StagingDisease-Free SurvivalOdds RatioRisk AssessmentTumor Markers, BiologicalCase-Control StudiesAnalysis of VariancePrevalenceSex FactorsQuestionnairesIncidenceUnited StatesSeverity of Illness IndexChi-Square DistributionLinear ModelsBiological MarkersBreast NeoplasmsNeoplasm Recurrence, LocalSocioeconomic FactorsRecurrenceLymphatic MetastasisDisease ProgressionROC Curve