Association of Sleep Duration and Working Hours with Suicidal Ideation in Shift Workers: The Korean National Health and Nutrition Examination Survey 2007–2018

Apr 29, 2021Psychiatry investigation

Sleep Time and Work Hours Linked to Suicidal Thoughts in Shift Workers

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Abstract

Shift workers sleeping for <6 or ≥10 hours a day are associated with a higher risk of .

  • Individuals working more than 52 hours a week may experience a higher risk of suicidal ideation compared to those working 40 hours or less.
  • The association between working hours and suicidal ideation appears to be stronger in men than in women.
  • Younger shift workers (aged <45 years) may be more vulnerable to suicidal ideation related to long working hours compared to older workers (aged ≥45 years).
  • Both insufficient and excessive sleep duration may be linked to an increased risk of suicidal thoughts among shift workers.

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Key numbers

36%
Increased Risk of
Compared to those sleeping 7 to <9 hours/day.
30%
Increased Risk of
Compared to those working ≤40 hours/week.
1,443 of 13,628
Prevalence of
Among surveyed shift workers.

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