To investigate the effects of psychological Impairments on the prognosis in schizophrenia, 148 schizophrenic patients on Screening Schedule were applied 10 items of Psychological impairment Rating Schedule. The author devided the long-term prognosis of Diagnostic and Prognostic Schedule into the group of good prognosis (85 cases) and the group of poor prognosis (63 cases) and to find out the difference of symptom structure between two groups, tried factor analysis using SPSS/PC+ based on the scores of each subitems.
The results of factor analysis were as follows：
1. In the group of good prognosis, 3 factors were extracted as disordered communication factor, attention withdrawal and loss of initiative factor, and psychic slowness factor. In the group of poor prognosis, 3 factors were extracted as disordered communication by expression factor, fatigue factor, and psychic slowness factor.
2. Generally, disordered communication was common in both groups but, in the group of poor prognosis attention withdrawal. loss of initiative. disordered self-expression were the additional symptoms and subjective fatigability was characteristic, and psychic slowness was common symptom in both groups.
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