精神疾病预测量表对精神分裂症的筛查价值

Practical value of the mental disorders predictive scale for screening schizophrenia

目的探讨精神疾病预测量表（MDPS）在精神分裂症筛查中的应用价值。方法对200例精神分裂症患者、371例非精神分裂症患者及300例正常对照者采用MDPS进行测量，并对测评结果进行比较；以MDPS的11个因子分为自变量，对3组被试的测试结果进行逐步判别分析，建立判别函数。结果精神分裂症组、非精神分裂症组的MDPS总分及各因子分均显著高于正常对照组（P〈0．05）；精神分裂症组的部分因子分显著高于非精神分裂症组（P〈0．05）。符合模型纳入变量、进入判别模型的变量有家族和既往史、社会支持缺乏、人格偏移、抑郁、神经症和精神病性。判别函数预测精神分裂症者、非精神分裂症者和正常对照者的正确率分别为68．0％、75．5％和92．1％，总符合率为79．2％。结论MDPS用于精神分裂症的初步筛查较为合适，具有良好的临床使用价值。

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 discriminant 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 psychosis 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 （38.0% for schizophrenic patients,75.5% for non-schizophrenic patients,92.1% for the normal controls, and the total coincidence was 79. 2%. Conclusion MDPS is more applicable for the screening of schizophrenia and has a good clinical value.