우울장애 선별 시 한글판 Patient Health Questionnaire-9의 기준점수(Cut-Off Point)에 대한 타당도 연구Finding Optimal Cut Off Points of the Korean Version of the Patient Health Questionnaire-9(PHQ-9) for Screening Depressive Disorders
- Other Titles
- Finding Optimal Cut Off Points of the Korean Version of the Patient Health Questionnaire-9(PHQ-9) for Screening Depressive Disorders
- Authors
- 이승현; 허유정; 김종훈; 한창수
- Issue Date
- 2014
- Publisher
- 대한우울∙조울병학회
- Keywords
- 주요우울장애; 우울증; PHQ-9; 기준점수; Major depressive disorder; Depression; Patient Health Questionnaire-9; Cut-off point
- Citation
- 우울조울병, v.12, no.1, pp.32 - 36
- Indexed
- KCI
OTHER
- Journal Title
- 우울조울병
- Volume
- 12
- Number
- 1
- Start Page
- 32
- End Page
- 36
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/100100
- ISSN
- 1738-0960
- Abstract
- Objectives : Depressive disorder is one of mental disorders associated with suicide. PHQ-9 is widely used screening instrument for depression in clinical settings. However, there is considerable divergence of opinion about cutoff points of the PHQ-9. The aim of this study was to find the valid, optimal cutoff points to screen depressive disorders using the Korean version of PHQ-9. Methods : 139 psychiatric patients who were diagnosed as MDD, dysthymic disorder, depressive disorder not otherwise specified, and other non-psychotic psychiatric disorders with the M.I.N.I. PLUS were recruited. Subsequently, the PHQ-9, HDRS, PHQ-15, MMPI-Depression scale were administered. Reliability, validity and the ROC curve analysis were performed. Results : The internal reliability using Cronbach’s alpha was relatively high (Cronbach’s alpha=0.85). In addition, correlations of the PHQ-9 with the HDRS, PHQ-15 and MMPI-Depression scale were 0.691, 0.582, and 0.404_ (p<.01). Between the depression and non-depression groups, the AUC_ (area under the ROC curve) was 0.712_ (standard error=0.051, p<.001) and the PHQ-9 had a cut-off point of 6_ (sensitivity 91.5%, specificity 33.3%). Between MDD and non-MDD groups, the AUC was 0.827 (standard error=0.035, p<.001) and the PHQ-9 had a cut-off point of 10_ (sensitivity 86.5%, specificity 52.9%). Conclusion : The PHQ-9 is considered as a short and valid tool to identify MDD (PHQ-9 total score 10).
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