1997
A comparison of Cox proportional hazards and artificial neural network models for medical prognosis
Ohno-Machado L. A comparison of Cox proportional hazards and artificial neural network models for medical prognosis. Computers In Biology And Medicine 1997, 27: 55-65. PMID: 9055046, DOI: 10.1016/s0010-4825(96)00036-4.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeDisease ProgressionHumansNeural Networks, ComputerPrognosisProportional Hazards ModelsSoftwareSurvival AnalysisConceptsCox proportional hazardsCox modelDisease progressionProportional hazardsCox proportional hazards modelDiagnosis of AIDSProportional hazards modelNegative predictive valuePrognostic accuracyIndividual patientsStudy populationPrognostic toolHazards modelPredictive valuePatientsPrognosisAIDSCharacteristic curveMedical prognosisProgressionPractice of medicineAccurate assessment
1996
Sequential use of neural networks for survival prediction in AIDS.
Ohno-Machado L. Sequential use of neural networks for survival prediction in AIDS. AMIA Annual Symposium Proceedings 1996, 170-4. PMID: 8947650, PMCID: PMC2233186.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeArea Under CurveDisease ProgressionHumansNeural Networks, ComputerPrognosisROC CurveSensitivity and SpecificitySurvival Analysis
1995
A comparison of two computer-based prognostic systems for AIDS.
Ohno-Machado L, Musen M. A comparison of two computer-based prognostic systems for AIDS. AMIA Annual Symposium Proceedings 1995, 737-41. PMID: 8563387, PMCID: PMC2579191.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeComputer SimulationDisease ProgressionHIV InfectionsHumansNeural Networks, ComputerPrognosisProportional Hazards ModelsSurvival AnalysisConceptsCox modelPredictive valueCox proportional hazards modelDiagnosis of AIDSThree-year survivalProportional hazards modelCohort of peopleNegative predictive valuePositive predictive valueDisease progressionPrognostic accuracyStudy populationHazards modelIndividualized estimatesPrognostic toolProbability of survivalPatientsAIDSPrognostic systemCohortFirst yearDiagnosisDeathSurvivalYearsHierarchical neural networks for survival analysis.
Ohno-Machado L, Walker M, Musen M. Hierarchical neural networks for survival analysis. Medinfo. 1995, 8 Pt 1: 828-32. PMID: 8591339.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeCaliforniaCohort StudiesHumansLongitudinal StudiesModels, StatisticalNeural Networks, ComputerNonlinear DynamicsSensitivity and SpecificitySurvival AnalysisConceptsNeural networkHierarchical neural networkHierarchical systemHierarchical modelHierarchical architectureDiscrete variablesNetworkData setsNonhierarchical modelTraditional methodsMedical applicationsAccurate predictionNumber of eventsArchitectureSystemTime-dependent variablesModelDataFirst time intervalTime intervalPredictionSetVariables
1993
Prognostic classification for aids patients in Brazil
Ohno-Machado L. Prognostic classification for aids patients in Brazil. Journal Of Medical Systems 1993, 17: 163-172. PMID: 8254260, DOI: 10.1007/bf00996941.Peer-Reviewed Original ResearchMeSH KeywordsAcquired Immunodeficiency SyndromeAdolescentAdultAgedAIDS-Related Opportunistic InfectionsBrazilCause of DeathChildChild, PreschoolCross-Sectional StudiesDeveloping CountriesDiscriminant AnalysisFemaleHospitalizationHumansIncidenceInfantInfant, NewbornMaleMiddle AgedNeoplasmsSurvival RateConceptsHospitalized AIDS patientsPrognosis of deathHistory of transfusionGroup IV patientsNumber of infectionsEsophageal candidiasisIV patientsAIDS patientsFirst manifestationAID patientsRisk groupsPrognostic classificationPrognostic variablesSurvival ratePatientsFinal discriminant functionInfectionDiseaseDeathAnalysis groupHospitalizationTransfusionPrognosisGroupCandidiasisAIDS2: a decision-support tool for decreasing physicians' uncertainty regarding patient eligibility for HIV treatment protocols.
Ohno-Machado L, Parra E, Henry S, Tu S, Musen M. AIDS2: a decision-support tool for decreasing physicians' uncertainty regarding patient eligibility for HIV treatment protocols. AMIA Annual Symposium Proceedings 1993, 429-33. PMID: 8130510, PMCID: PMC2248545.Peer-Reviewed Original Research