Shift-work Disorder
Conditions
Brief summary
The aim is to assess whether a self-help book for coping with shift work will reduce complaints in relation to shift work.
Detailed description
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.
Interventions
OTHERBook
Self-help book describing advice to cope with shift work
OTHERSleep hygiene
Basic sleep hygiene advice on a piece of paper
Sponsors
University of Bergen
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Symptoms suggesting shift work disorder * Health care worker
Exclusion criteria
* Below 18 years
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Sleep problems | 6 months | 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. |
| Sleepiness problems | 6 months | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Shift work disorder | 6 months | Prevalence of shift work disorder based on international criteria |
| Knowledge about shift work and health | 6 months | Questions about sleep, circadian rhythms and shift work |
| Sick leave | 6 months | Self-reported sickness absence |
| Turnover intention | 6 months | Self-reported turnover intention on a validated scale (TI) with scores ranging from 0 to 4 with higher values indicating more turnover intention. |
Countries
Norway
Contacts
Primary ContactBjørn Bjorvatn, PhD
Backup ContactSiri Waage, PhD
Outcome results
None listed