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The relationship between morningness-eveningness and mood symptoms and quality of life in euthymic state of mood disorders: Results from a prospective observational cohort study

Authors
Seo, Ju YeonYeom, Ji WonCho, Chul-HyunSon, SerhimAhn, Yong-MinKim, Se JooHa, Tae HyonCha, BoseokMoon, EunsooPark, Dong YeonBaek, Ji HyunKang, Hee-JuAn, HyongginLee, Heon-Jeong
Issue Date
1-Nov-2022
Publisher
Elsevier BV
Keywords
Chronotype; Morningness-eveningness; Mood disorders; Depression; Quality of life
Citation
Journal of Affective Disorders, v.316, pp 10 - 16
Pages
7
Indexed
SCIE
SSCI
SCOPUS
Journal Title
Journal of Affective Disorders
Volume
316
Start Page
10
End Page
16
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/781
DOI
10.1016/j.jad.2022.07.072
ISSN
0165-0327
1573-2517
Abstract
Background: The clinical importance of morningness-eveningness, especially in mood disorders, is prevailing. The differential relation of chronotype with diagnoses of early-onset mood disorders, mood symptoms, anxiety, and quality of life was evaluated. Methods: Early-onset mood disorder patients [n = 419; 146 major depressive disorder (MDD); 123 bipolar I disorder (BDI); 150 bipolar II disorder (BDII)] from the Mood Disorder Cohort Research Consortium were assessed for chronotype using the composite scale for morningness (CSM) and its association with clinical var-iables obtained during the clinician-verified euthymic state.Results: The mean total CSM of BDI was significantly higher than MDD and BDII (p < 0.001). In all types of mood disorders, higher total CSM was associated with lower Quick inventory of depressive symptomatology (p < 0.005) and higher WHO quality of life (p < 0.005). Such negative correlations between the total CSM and Montgomery-Asberg depression rating were significant in MDD and BDI (p < 0.05) and marginally significant in BDII (p = 0.077). CSM was a significant contributor to quality of life in BDI (p < 0.001) and BDII (p = 0.011), but it was not for MDD. Limitations: The defined 'euthymic state' that may not fully reflect the remission of episode; limited generaliz-ability due to clinical characteristic of early-onset mood disorder; the disparity between diurnal preference measured by the CSM and chronotype; possible effects of the last mood episode polarity and medication; and, lack of control group. Conclusion: Less eveningness was associated with less severe depressive symptoms and better quality of life. This suggests that morningness may reduce residual depressive symptoms and recover function of patients.
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의과대학 (의학과)
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