The relationship between sleep disturbances and depression in daytime workers: a cross-sectional structured interview survey

Hiroki IKEDA; Kotaro KAYASHIMA; Takeshi SASAKI; Sachiko KASHIMA; Fumihiko KOYAMA

doi:10.2486/indhealth.2017-0055

Field Report

The relationship between sleep disturbances and depression in daytime workers: a cross-sectional structured interview survey

Hiroki IKEDA , Kotaro KAYASHIMA, Takeshi SASAKI, Sachiko KASHIMA, Fumihiko KOYAMA

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Keywords: Hamilton depression rating scale, Insomnia, Sleep quality, Sleep problems, Japanese daytime workers

JOURNAL FREE ACCESS

2017 Volume 55 Issue 5 Pages 455-459

DOI https://doi.org/10.2486/indhealth.2017-0055

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Abstract

The aim of this study was to clarify the relationship between sleep disturbances and depression in daytime workers using a structured interview. A total of 1,184 daytime workers were enrolled. We evaluated difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), early morning awakening (EMA), and global insomnia scores (ISs) in all participants. As a result, the prevalences of DIS, DMS, and EMA were 16%, 46%, and 22 %, respectively. IS was significantly correlated with depression score. Additionally, although all IS subscales (i.e., DIS, DMS, and EMA) were significantly associated with depression score, the main factor contributing to depression score was DIS. Thus, the present study reveals that sleep disturbances and especially DIS are associated with depression in daytime workers.

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