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The aim is to assess whether a self-help book for coping with shift work will reduce complaints in relation to shift work.
This study is a randomized controlled trial evaluating the effect of a self-help book for shift work related problems compared to the effect of sleep hygiene advice in participants with shift work disorder. 300 participants will be randomized to receive either the book or the sleep hygiene advice. Participants complete questionnaires about sleep, sleepiness and health at baseline and after 6 months after receiving the written material. The main aims are to assess whether the book is more effective to reduce sleep and sleepiness problems in relation to shift work, and to reduce the prevalence of shift work disorder, to increase knowledge about sleep and circadian rhythms, improve health, and reduce turnover intention.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Self-help book | Experimental | A self-help book for coping with shift work |
|
| Sleep hygiene advice | Active Comparator | A sheet of paper with basic and standard sleep hygiene advice |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Book | Other | Self-help book describing advice to cope with shift work |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Sleep problems | Self-reported sleep problems in relation to shift work on a validated scale - Bergen Shift Work Sleep Questionnaire (BSWSQ). Questions range from 0 to 4 with higher values indicating more sleep problems. | 6 months |
| Sleepiness problems | Self-reported sleepiness in relation to shift work on a validated scale - Bergen Shift Work Sleep Questionnaire (BSWSQ). Questions range from 0 to 4 with higher values indicating more sleepiness. | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Shift work disorder | Prevalence of shift work disorder based on international criteria | 6 months |
| Knowledge about shift work and health | Questions about sleep, circadian rhythms and shift work |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Bergen | Bergen | Hordaland | 5018 | Norway |
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| Sleep hygiene |
| Other |
Basic sleep hygiene advice on a piece of paper |
|
| 6 months |
| Sick leave | Self-reported sickness absence | 6 months |
| Turnover intention | Self-reported turnover intention on a validated scale (TI) with scores ranging from 0 to 4 with higher values indicating more turnover intention. | 6 months |