Relationship of Positive and Negative Symptoms to Cocaine Abuse in Schizophrenia
LYSAKER P, BELL M, BEAM-GOULET J, MILSTEIN R. Relationship of Positive and Negative Symptoms to Cocaine Abuse in Schizophrenia. The Journal Of Nervous And Mental Disease 1994, 182: 109-112. PMID: 8308528, DOI: 10.1097/00005053-199402000-00008.Peer-Reviewed Original ResearchConceptsCocaine-abusing subjectsNegative Syndrome ScaleCocaine abuseNegative symptomsParanoid subtypeSyndrome ScaleSubstance abuseMore frequent hospitalizationsFirst psychiatric hospitalizationLifetime substance abuseSevere negative symptomsSubstance abuse historyFrequent hospitalizationsPsychiatric hospitalizationAlcohol abusePositive symptomsMultivariate analysisSymptomsPatientsHospitalizationSignificant differencesSubtypesDiagnosisSchizophreniaMonths