한국판 정신장애 진단선별질문지의 표준화 연구 : 최적 절단점

Study on Standardization of Korean Version of Psychiatric Diagnostic Screening Questionnaire : The Optimal Cutoff Scores

ObjectivesAn exact diagnosis and comorbidity analysis are important in psychiatric disorders. The Psychiatric Diagnostic Screening Questionnaire (PDSQ) is both useful as a self-reporting test for screening psychiatric disorders and available for clinical settings due to its simplicity and convenience. This study, as a part of standardization of Korean version of Psychiatric Diagnostic Screening Questionnaire (K-PDSQ), evaluated optimal cutoff scores. MethodsThe samples were 696 patients in total, who were selected from the psychiatric departments of 3 university hospitals from March 2008 to August 2011. Diagnosing by Mini-International Neuropsychiatric Interview-Plus (MINI-Plus), we evaluated sensitivity, specificity, cutoff scores, ROC curve, and area under the curve (AUC) of K-PDSQ. SPSS version 12.0 for Windows and MedCalc version 12.0 were used to analyze the results. ResultsWith a cutoff score of 9 for major depressive disorder in K-PDSQ, both the sensitivity and specificity were 80%. The cutoff scores of PTSD, OCD, panic disorder, agoraphobia, psychosis, alcohol related problem, GAD, hypochondriasis, and social phobia of K-PDSQ were 5, 2, 4, 2, 1, 2, 5, 4, and 5, respectively. In most of the subscales, each AUC was above 0.75. ConclusionBy applying the cutoff scores estimated above, we expect K-PDSQ to help provide diagnostic assessments and to grasp comorbidities before a clinical interview in the setting of busy outpatient clinics.