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KMID : 1143820100060020119
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Anxiety and Mood
2010 Volume.6 No. 2 p.119 ~ p.124
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Reliability and Validity of the Korean Version of the Patient Health Questionnaire-9 (PHQ-9)
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Park Seung-Jin
Choi Hye-Ra
Choi Ji-Hye
Kim Kun-Woo
Hong Jin-Pyo
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Abstract
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Objective : The reliability and validity of the Korean version of the Patient Health Questionnaire-9 (PHQ- 9) was examined in Korean patients with depressive symptoms.
Methods: Eighty six outpatients diagnosed as major depressive disorder or depressive episode of bipolar I disorder according to the DSM-IV criteria were assessed with the PHQ-9, Hamilton Depression Rating Scale (HDRS), the Quick Inventory of Depressive Symptomatology Self Report (QIDS-SR), and the Center for Epidemiologic Studies Depression Scale (CES-D).
Results: The Cronbach’s alpha coefficient from the PHQ-9 was 0.81. And the correlations of each item with the total score were statistically significant (r=0.28-0.70, p<0.01). The test-retest correlation coefficient (r=0.89, p<0.01) was relatively high and correlations of the PHQ-9 with the HDRS, QIDS-SR and CES-D were 0.70, 0.81, and 0.81 respectively.
Conclusion: These results demonstrated that the Korean version of PHQ-9 could be a reliable and valid tool for the screening and assessment of depressive patients. The Korean version of PHQ-9 will be a useful tool for screening depressive symptoms in Korea.
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KEYWORD
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Korean version of Patient Health Questionnaire (PHQ-9), Reliability, Validity
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