Poor sleep contributes to declines in productivity
Impact and correlates of poor sleep quality in Japanese white-collar employees. Doi Y, Minowa M, Tango T. Sleep. 2003. 26: 427:471.
To estimate the prevalence of sleep-related issues within a working population and examine the impact of poor sleep upon workplace absence.
4,868 employees of a tele-communications company in Tokyo.
All employees completed the Pittsburgh Sleep Quality Index.
- Sleep issues were reported by 45% of the respondents.
- Those with poor sleep were 89% more likely to take sick leave and 135% more likely to have difficulties performing than those without sleep problems.
- The most strongly associated factors underlying poor sleep quality were perceived stress and low job satisfaction.
What does this mean?
Poor sleep is significantly associated with higher absenteeism and presenteeism. Health programmes targeting insomnia could yield improvements in worker productivity.