title: Ego-pathology and common symptom factors in schizophrenia.
abstract: The phenomenological construct of ego-pathology in schizophrenia has been widely referred to in psychopathological textbooks but was systematically assessed in very few empirical studies. This study investigated the association between ego-pathology (Ego-Pathology Inventory) and common symptom factors (Positive and Negative Symptom Scale) in paranoid schizophrenia patients within 3 days after admission and after 2 weeks of treatment. The predictive value of ego-pathology for short-term treatment outcome was also assessed. A factor analysis of all subscale scores revealed a four-factor solution: positive symptoms, negative symptoms, and two distinct ego-pathology factors, i.e., general and identity. Although the ego-pathology subscale "activity" loaded on the positive symptom factor, the other four subscales formed the two ego-pathology factors with no high loadings on other factors. High scores on ego-demarcation at admission predicted poor treatment outcome after 2 weeks. The findings suggest that ego-pathology might be used to capture additional and clinically meaningful symptom dimensions in schizophrenia.
authors.affiliation: Unit for Social and Community Psychiatry, Newham Centre for Mental Health East London and The City Mental Health Trust, London, United Kingdom.
authors.forename: Frank
authors.initials: F
authors.lastname: Röhricht
authors.forename: Stefan
authors.initials: S
authors.lastname: Priebe
mesh_terms: D000328:Adult; D004532:Ego; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008960:Models, Psychological; D010555:Personality Inventory / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D011379:Prognosis; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D011594:Psychometrics; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D019455:Self Psychology; D016896:Treatment Outcome