Cohort StudiesRetrospective StudiesCD4 Lymphocyte CountHIV InfectionsAntiretroviral Therapy, Highly ActiveAnti-HIV AgentsViral LoadProspective StudiesRisk FactorsHIV-1Treatment OutcomeFollow-Up StudiesIncidenceTime FactorsInfant, NewbornPrognosisAge FactorsRisk AssessmentProportional Hazards ModelsPregnancyCohort EffectMultivariate AnalysisSurvival RateUnited StatesPrevalenceLogistic ModelsLongitudinal StudiesSurvival AnalysisSeverity of Illness IndexPredictive Value of TestsCase-Control StudiesPostoperative ComplicationsKaplan-Meier EstimateSex FactorsOdds RatioLength of StayHospitalizationQuestionnairesChi-Square DistributionRiskAge DistributionComorbidityRecurrenceReproducibility of ResultsRegistriesSensitivity and SpecificityGreat BritainEpidemiologic MethodsRegression AnalysisDisease ProgressionConfidence IntervalsFrancePregnancy OutcomeCause of DeathDenmarkSex DistributionDatabases, FactualNeoplasm StagingCross-Sectional StudiesNeoplasmsSwedenTomography, X-Ray ComputedMedical RecordsJapanHospital MortalitySmokingOutcome Assessment (Health Care)Breast NeoplasmsBody Mass IndexNetherlandsEnglandGenotypeBiological MarkersSocioeconomic FactorsStatistics, NonparametricDisease-Free SurvivalReoperationBrazilChronic DiseaseOccupational DiseasesGermanyItalyGestational AgeMedical AuditIntensive Care UnitsLinear ModelsEuropean Continental Ancestry GroupNeoplasm Recurrence, LocalCombined Modality TherapyPatient SelectionBirth WeightAge of OnsetScotlandHospitals, UniversityStrokeFinlandOccupational ExposureTertiary Care CentersAcute DiseaseMortality