IQ scores of treatment-resistant schizophrenia patients before and after the onset of the illness

Authors
Sheitman, BB Murray, MG Snyder, JA Silva, S Goldman, R Chakos, M Volavka, J Lieberman, JA
Citation
Bb. Sheitman et al., IQ scores of treatment-resistant schizophrenia patients before and after the onset of the illness, SCHIZOPHR R, 46(2-3), 2000, pp. 203-207
Citations number
19
Categorie Soggetti
Psychiatry,"Neurosciences & Behavoir
Journal title
SCHIZOPHRENIA RESEARCH
ISSN journal
09209964 → ACNP
Volume
46
Issue
2-3
Year of publication
2000
Pages
203 - 207
Database
ISI
SICI code
0920-9964(200012)46:2-3<203:ISOTSP>2.0.ZU;2-Z
Abstract
In this study we examined the correlations of actual pre-morbid IQ scores ( obtained from routine educational assessments) and estimated current IQ sco res in 27 treatment-resistant schizophrenia patients. Pre-morbid (mean= 93) and current (mean=83) IQ scores were significantly correlated (r=0.807. P< 0.0001), while duration of illness (10-40 years) was unrelated to the magni tude of IQ score decline (r=-0.103, P=0.575). These data suggest that pre-m orbid IQ test scores are highly predictive of post-morbid scores. (C) 2000 Elsevier Science B.V. All rights reserved.