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Clin Psychopharmacol Neurosci. 2018 Aug 31;16(3):316-323. doi: 10.9758/cpn.2018.16.3.316.

Screening with the Korean Version of the Mood Disorder Questionnaire for Bipolar Disorders in Adolescents: Korean Validity and Reliability Study.

Author information

1
Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.
2
Department of Psychiatry, Catholic University of Daegu College of Medicine, Daegu, Korea.
3
Department of Psychiatry, Naju National Hospital, Naju, Korea.
4
Department of Psychiatry, Konkuk University School of Medicine, Chungju, Korea.
5
Department of Psychology, Chungbuk National University, Cheongju, Korea.
6
Department of Psychiatry, CHA University, Gumi, Korea.
7
Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea.
8
Department of Psychiatry, Bongseng Memorial Hospital, Busan, Korea.
9
Department of Psychiatry, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.

Abstract

Objective:

This study aimed to evaluate the validity and reliability of a Korean version of the Mood Disorder Questionnaire-Adolescent version (K-MDQ-A) as a screening instrument for bipolar disorders in adolescents.

Methods:

One hundred two adolescents with bipolar disorders and their parents were recruited from November 2014 to November 2016 at 7 training hospitals. One hundred six controls were recruited from each middle school in two cities of South Korea. The parent version of the original MDQ-A was translated into Korean. The parents of all participants completed the K-MDQ-A. The diagnoses of bipolar disorders were determined based on the Korean version of K-SADS-PL. The test-retest reliability with a 10-month interval was investigated in 33 bipolar adolescents.

Results:

K-MDQ-A yielded a sensitivity of 0.90 and a specificity of 0.92 when using a cut-off score of endorsement of 5 items, indicating that symptoms occurred in the same time period and caused moderate or serious problems. The internal consistency of the K-MDQ-A was good. The correlations between each item and the total score ranged from 0.40 to 0.76 and were all statistically significant. Factor analysis revealed 3 factors that explained 61.25% of the total variance. The mean total score was significantly higher in bipolar adolescents (7.29) than in controls (1.32). The Pearson correlation coefficient for the total test-retest score was 0.59 (p<0.001).

Conclusion:

The K-MDQ-A completed by parents showed the excellent validity and reliability and may be a useful screening tool for adolescents with bipolar disorders attending in- and outpatient psychiatric clinics.

KEYWORDS:

Adolescent; Bipolar disorder; Mood Disorder Questionnaire; Reliability and validity; Screening.

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