Study of insomnia in rotating shift-workers.

Background: Shift-workers commonly suffer from insomnia. This study evaluates different domains of insomnia.

Aim: This study was aimed to study sleep and insomnia in rotating shift-workers and compare with day-workers.

Materials and Methods: This was case-control study. The sleep of rotating shift-workers is compared with day workers using Athens Insomnia Scale.

Results: Rotating shift-workers had significantly higher scores on Athens insomnia scale on domains of initial, intermediate and terminal insomnia than day workers. Duration and quality of sleep and sense of well-being are lower in rotating shift-workers. Rotating shift-workers also experienced more day-time sleepiness than day workers. However, there was no difference in perceived physical and mental functioning between the two groups.

Conclusion: Individuals working in rotating shifts for more than 15 days have significantly higher prevalence of insomnia than day-workers.