Demographic, clinical, and neurocognitive predictors of quality of life in schizophrenia patients receiving conventional neuroleptics.
We sought to evaluate demographic, clinical, and neurocognitive predictors of self-rated life quality and hospitalization in schizophrenia patients without the potentially cognition-enhancing influence of newer generation neuroleptic medication. A sample of 55 atypical neuroleptic-naive schizophrenia patients was assessed at index and 3 years later. Index neurocognitive measures included general intellectual ability (IQ), executive ability (Wisconsin Card Sorting Test [WCST]), verbal memory (California Verbal Learning Test [CVLT]), and manual dexterity (Purdue Pegboard). These measures, along with demographic (age, sex, education) and clinical (symptoms, prior hospitalizations) variables, were entered into regression equations to predict life quality (Sickness Impact Profile [SIP]) at follow-up, as well as rehospitalization during the 3-year period. Stability data were also analyzed. Demographic and cognitive data predicted subjective quality of life, but not rehospitalization. Changes in memory over time rather than performance levels related to life quality at follow-up. Rehospitalization was related only to demographic data and previous hospital admissions. The findings support the predictive value of selected aspects of neurocognition in relation to a subjective outcome domain in schizophrenia.
Neurobehavioral Research Unit, St. Michael's Hospital, Toronto, Ontario, Canada.
Teresa L
TL
Sota
R Walter
RW
Heinrichs
D000293:Adolescent; D000328:Adult; D000368:Aged; D001921:Brain / Q000503:physiopathology*; D010054:Brief Psychiatric Rating Scale; D002908:Chronic Disease; D003072:Cognition Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000503:physiopathology*; D003710:Demography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D017063:Outcome Assessment, Health Care; D011788:Quality of Life; D012559:Schizophrenia / Q000175:diagnosis / Q000453:epidemiology* / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D012720:Severity of Illness Index