A Validation Study of the Korean Version Mood Disorder Questionnaire(K-MDQ).
- Author:
Duk In JON
1
;
Bo Hyun YOON
;
Han Yong JUNG
;
Kyoo Seob HA
;
Young Chul SHIN
;
Won Myong BAHK
Author Information
1. Department of Neuropsychiatry, Ilsan Hospital, National Health Insurance Corporation, Koyang, Korea.
- Publication Type:Original Article ; Validation Studies
- Keywords:
Bipolar disorder;
Korean version of mood disorder questionnaire (K-MDQ);
Validity
- MeSH:
Bipolar Disorder;
Diagnostic and Statistical Manual of Mental Disorders;
Humans;
Mass Screening;
Mood Disorders*;
Outpatients;
Principal Component Analysis;
Surveys and Questionnaires;
Sensitivity and Specificity
- From:Journal of Korean Neuropsychiatric Association
2005;44(5):583-590
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVES: This study aims to test the validity of the Korean version of Mood Disorder Questionnaire (K-MDQ), a screening instrument for bipolar disorder. METHODS: A total of 238 subjects (126 DSM-IV bipolar outpatients and 112 controls without psychiatric history) completed the K-MDQ. RESULTS: The Cronbach's alpha, used to measure the internal consistency of the scale, was high (0.88). Principal component analysis with varimax rotation revealed three factors, which explained 59.5% of the variance. Individual item correlations with the total score were all statistically significant (p<0.001). The mean total score of the K-MDQ was 8.48 in bipolar disorder and 4.51 in non-clinical participants. A total K-MDQ score of 7 or more excluding further two questions was chosen as the optimal cutoff, as it provided good sensitivity (0.75) and specificity (0.69). CONCLUSION: The results of this study showed adequate validity of the K-MDQ, suggesting that this instrument is useful for screening of bipolar disorder.
