CoChat
Sign Up
Cited by 53Workplace Health and Well-beingSleep and Work-Related FatigueStress and Burnout Research

Working Hours, Coping Skills, and Psychological Health in Japanese Daytime Workers

Open access
OTSUKA, Yasumasa, SASAKI, Takeshi, IWASAKI, Kenji, MORI, Ippei·2009·Industrial Health
DOI 10.2486/indhealth.47.22
Open this paper in CoChat — free accountOpen PDF

Abstract

This study examined the relationship between coping skills, working hours, and psychological health among Japanese daytime workers. Self-administered questionnaires were mailed to a randomly selected sample of 2,000 workers who were members of a pre-recruited market research panel. A total of 1,821 participants responded (response rate=91.1%). Participants completed a questionnaire regarding working hours, coping skills, and psychological health (negative emotions, fatigue, and concentration/activity levels). Analyses of covariance were conducted to determine the relations of number of working hours, coping skills, and their interactions to psychological health with control for sex, age, drinking, job type, and employment type. Results revealed that working hours were significantly associated with fatigue and concentration/activity levels. High levels of instrumental support and positive reframing were significantly associated with low levels of negative emotions, fatigue, and concentration/activity levels. High levels of self-blame, denial, substance use, venting, self-distraction, religion, and behavioral disengagement were significantly associated with high levels of negative emotions, fatigue, and concentration/activity levels. This study suggests that improving coping skills such as using instrumental support or positive reframing may reduce the adverse health effects of long working hours.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.2486/indhealth.47.22

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Previous studies reported the reliability and validity of the Brief COPE.

    “Previous studies reported the reliability and validity of the Brief COPE [36,38].”

    From Psychological factors associated with social withdrawal (Hikikomori) (2021) · cites this paper as [38]

    The Coping skills section (page not provided) reports Cronbach’s alpha coefficients for the Brief COPE subscales, supporting the reliability part of the claim, though two subscales had low coefficients. It describes translation and back-translation but does not report evidence establishing the instrument’s validity. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Sparks K, Cooper C (1997) The effects of hours of work on health: a meta analytic review. J Occup Organ Psychol 70, 391-408.

Cited by

Sorted by citations

Related

Authors
OTSUKA, Y., SASAKI, T., IWASAKI, K., & MORI, I.
Affiliations
  • Hiroshima University (JP)
  • National Institute for Occupational Safety and Health (US)
ORCID
Venue
Industrial Health
Publisher
National Institute of Industrial Health
Published
2009
Volume
47
Issue
1
Pages
22-32
ISSN
  • 0019-8366 (ISSN-L)
  • 1880-8026
DOI
10.2486/indhealth.47.22
OpenAlex
W2068501800
Cited by
53
References
29
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 6 · 2020: 3 · 2019: 1 · 2018: 1 · 2017: 3 · 2016: 4 · 2015: 5 · 2014: 2 · 2013: 3 · 2012: 2
FWCI
5.43
Type
journal article
Language
en
Open access
Locations
  • Industrial Health (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Occupational Safety and Health, Japan
Topics
  • Health Sciences › Health Professions › General Health Professions › Workplace Health and Well-being
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Social Sciences › Psychology › Social Psychology › Stress and Burnout Research
Keywords
working hours, coping strategies, mental health, occupational stress, fatigue, negative emotions, concentration, instrumental support, positive reframing, self-blame, denial, substance use, venting, self-distraction, behavioral disengagement, Japanese workers
MeSH terms
Adaptation, Psychological, Adult, Female, Humans, Japan, Male, Middle Aged, Surveys and Questionnaires, Stress, Psychological, Work Schedule Tolerance, Occupational Exposure, Young Adult

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review