Practical value of the mental disorders predictive scale for screening schizophrenia

Abstract

Objective To explore the assessment value of the Mental Disorders Predictive Scale(MDPS) for the screening of schizophrenia. Methods 200 schizophrenic patients,371 non-schizophrenic patients and 300 normal controls were tested and compared by MDPS. Taking 11 factor scores as the independents,the Fisher's dis-criminant functions were built by Bayes' stepwise discriminant analysis. Results The total score and all factor scores of schizophrenic group and non-schizophrenic group were significantly higher than those of the control group (P<0.05);some factor scores of schizophrenic group were significantly higher than those of the non-schizophrenic group. Family and past history, social support deficiency, personality disturbance, depression, neurosis and psy-chosis entered the discriminant functions according to the entry criteria of the models. The correctly classified rates of the original grouped cases by the discriminant models were 68. 0% for schizophrenic patients,75.5% for non-schizo-phrenic patients,92.1% for the normal controls, and the total coincidence was 79.2%. Conclusion MDPS is more ap-plicable for the screening of schizophrenia and has a good clinical value. Key words: Mental disorders predictive scale; Schizophrenia; Discriminant analysis