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Published in: Sleep and Breathing 2/2022

22-07-2021 | Affective Disorder | Epidemiology • Original Article

Fatigue is associated with depression independent of excessive daytime sleepiness in the general population

Authors: Jun-Sang Sunwoo, Daeyoung Kim, Min Kyung Chu, Chang-Ho Yun, Kwang Ik Yang

Published in: Sleep and Breathing | Issue 2/2022

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Abstract

Purpose

This study aimed to investigate sleep problems and comorbid conditions associated with fatigue in the general population.

Methods

The data were obtained from a nationwide cross-sectional survey conducted in 2018. The Fatigue Severity Scale was used to assess fatigue. We examined sleep habits, such as workday sleep duration, chronotype, and free-day catch-up sleep, excessive daytime sleepiness (EDS), depression, and other comorbid conditions. We conducted multiple logistic regression analysis with the presence of fatigue as a dependent variable.

Results

Of 2,493 adults aged 19 to 92 years, 50% men, mean age was 47.9 ± 16.4 years. The average workday sleep duration was 7.1 ± 1.1 h, and the prevalence of fatigue was 31%. After adjusting for potential confounders, fatigue was associated with EDS (odds ratio [OR] 3.751, 95% confidence interval [CI] 2.928–4.805), depression (OR 3.736, 95% CI 2.701–5.169), perceived insufficient sleep (OR 1.516, 95% CI 1.249–1.839), free-day catch-up sleep (OR 1.123, 95% CI 1.020–1.235), less alcohol intake (OR 0.570, 95% CI 0.432–0.752), and physical inactivity (OR 0.737, 95% CI 0.573–0.948). On subgroup analysis, fatigue was additionally associated with short workday sleep duration (OR 0.899, 95% CI 0.810–0.997) in individuals without EDS. However, among those with EDS, only depression (OR 2.842, 95% CI 1.511–5.343) and less alcohol intake (OR 0.476, 95% CI 0.247–0.915) were associated with fatigue.

Conclusion

Fatigue was significantly associated with depression independent of EDS. Further research is warranted to better understand the pathophysiological relationship between fatigue, depression, and sleep.
Literature
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go back to reference Neu D, Mairesse O, Hoffmann G, Valsamis JB, Verbanck P, Linkowski P, Le Bon O (2010) Do ‘sleepy’ and ‘tired’ go together? Rasch analysis of the relationships between sleepiness, fatigue and nonrestorative sleep complaints in a nonclinical population sample. Neuroepidemiology 35(1):1–11. https://doi.org/10.1159/000301714CrossRefPubMed Neu D, Mairesse O, Hoffmann G, Valsamis JB, Verbanck P, Linkowski P, Le Bon O (2010) Do ‘sleepy’ and ‘tired’ go together? Rasch analysis of the relationships between sleepiness, fatigue and nonrestorative sleep complaints in a nonclinical population sample. Neuroepidemiology 35(1):1–11. https://​doi.​org/​10.​1159/​000301714CrossRefPubMed
Metadata
Title
Fatigue is associated with depression independent of excessive daytime sleepiness in the general population
Authors
Jun-Sang Sunwoo
Daeyoung Kim
Min Kyung Chu
Chang-Ho Yun
Kwang Ik Yang
Publication date
22-07-2021
Publisher
Springer International Publishing
Published in
Sleep and Breathing / Issue 2/2022
Print ISSN: 1520-9512
Electronic ISSN: 1522-1709
DOI
https://doi.org/10.1007/s11325-021-02448-3

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