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Psychometric Properties of the Chinese Version of the Bipolar Depression Rating Scale for Bipolar Disorder

Authors Chen JX, Yin L, Xu HT, Zhang SY, Huang WQ, Li HJ, Li BB, Yang KB, Li Q, Berk M, Su YA

Received 6 January 2021

Accepted for publication 25 February 2021

Published 12 March 2021 Volume 2021:17 Pages 787—795


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Jun Chen

Jing-Xu Chen,1,* Lu Yin,1,* Hai-Ting Xu,1 Suo-Yuan Zhang,1 Wen-Qian Huang,1 Hong-Juan Li,1 Bin-Bin Li,1 Ke-Bing Yang,1 Qian Li,2 Michael Berk,3 Yun-Ai Su2

1Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing, 100096, People’s Republic of China; 2Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, 100083, People’s Republic of China; 3Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Geelong, Vic., Australia

*These authors contributed equally to this work

Correspondence: Yun-Ai Su Email [email protected]

Introduction: Unlike unipolar depression, depressive episode of bipolar disorder is often associated with clinical characteristics, such as atypical and mixed symptoms. However, there are currently no valid and reliable specific tools available to assess the specific psychiatric symptomatology of depressive episode of bipolar disorder in China. Therefore, we aimed to evaluate the psychometric properties of the Chinese version of the Bipolar Depression Rating Scale (BDRS) in Chinese patients with bipolar disorder.
Methods: The sample of this study included 111 patients with bipolar disorder (30 male, 81 female). All participants were interviewed with the Chinese version of the BDRS (BDRS-C), the 17-item Hamilton Depression Rating Scale (HAMD-17), the Montgomery-Asberg Depression Rating Scale (MADRS) and the Young Mania Rating Scale (YMRS). A psychometric analysis of the BDRS was conducted.
Results: The Cronbach’s alpha coefficient of the BDRS-C reached a value of 0.869. The BDRS-C score and scores for the HAMD-17 (r = 0.819, p < 0.01), the MADRS (r = 0.882, p < 0.01) and the YMRS (r = 0.355, p < 0.01) exhibited significant positive correlations. Close correlations were observed between the mixed subscale score of the BDRS-C and the YMRS score (r = 0.784, p < 0.01). Exploratory factor analysis resulted in three factors: a primary depressive symptoms cluster, a secondary depressive symptoms cluster, and a mixed symptoms cluster.
Conclusion: The Chinese version of the BDRS has satisfactory psychometric properties. This is a valid and reliable instrument to assess depressive symptomatology in patients with bipolar disorder.

Keywords: bipolar disorder, mania, depression, psychometrics, depressive episode, rating scale, psychiatry

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