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Personality associated with depressive status in individuals with type 2 diabetes mellitus

Authors Yasui-Furukori N, Murakami H, Otaka H, Nakayama H, Murabayashi M, Mizushiri S, Matsumura K, Tanabe J, Matsuhashi Y, Yanagimachi M, Nakamura K, Daimon M, Sugawara N

Received 31 December 2018

Accepted for publication 1 April 2019

Published 3 May 2019 Volume 2019:15 Pages 1133—1139

DOI https://doi.org/10.2147/NDT.S200012

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Ms Justinn Cochran

Peer reviewer comments 2

Editor who approved publication: Dr Taro Kishi


Norio Yasui-Furukori,1,2 Hiroshi Murakami,3 Hideyuki Otaka,3 Hirofumi Nakayama,3 Masaya Murabayashi,3 Satoru Mizushiri,3 Koki Matsumura,3 Jutaro Tanabe,3 Yuki Matsuhashi,3 Miyuki Yanagimachi,3 Kazuhiko Nakamura,2 Makoto Daimon,3 Norio Sugawara1,4

1Department of Psychiatry, Dokkyo Medical University School of Medicine, Tochigi, Japan; 2Department of Neuropsychiatry, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; 3Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; 4Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan

Objective: Type 2 diabetes mellitus (T2DM) is associated with a high prevalence of depression, and depression is influenced by personality traits; however, these psychological factors have not been well studied in individuals with T2DM. The association between the use of a 5-factor model of personality and depressive symptoms was examined in individuals with T2DM.
Methods: The subjects were 435 T2DM patients (mean age 63.1±12.6 years). Depressive status and personality traits were assessed using the Center for Epidemiologic Studies Depression Scale and the Ten-Item Personality Inventory, Japanese version, respectively. Lifestyle factors and glycated hemoglobin A1c levels in the patients were also included in the analyses.
Results: Among the 435 subjects with T2DM, 130 (29.9%) exhibited possible depression, and 68 (15.6%) exhibited probable depression. After adjustment for confounders, Extraversion, Agreeableness and Neuroticism were found to be significantly associated with the presence of depression. No relationships were found between depression and HbA1c.
Conclusion: These findings indicate that Extraversion and Agreeableness are protective factors, and Neuroticism is a risk factor for depression in T2DM patients. Psychological therapy focusing on personality may reduce depressive symptoms. Additional studies are needed to examine the relationships between psychological factors and depressive symptoms using a longitudinal study design.

Keywords: cross-sectional studies, depressive symptoms, Japanese, personality, type 2 diabetes

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