Trial reportInternational archives of occupational and environmental health2016
Shift work and quality of sleep: effect of working in designed dynamic light.
Trial report in International archives of occupational and environmental health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 4 syntheses or guidelines pooled it, 46 citations in OpenAlex.
- Interventions to improve the sleep of nurses: A systematic review.Research in nursing & health · 2023Pooled it
- A Systematic Review of Workplace-Based Employee Health Interventions and Their Impact on Sleep Duration Among Shift Workers.Workplace health & safety · 2021Pooled it
- Meta-analysis of differences in sleep quality based on actigraphs between day and night shift workers and the moderating effect of age.Journal of occupational health · 2021Pooled it
- The combined effects of occupational exposure to noise and other risk factors - a systematic review.Noise & healthPooled it
- Bright environmental light improves the sleepiness of nightshift ICU nurses.Critical care (London, England) · 2018Trial
- Melatonin and Cortisol Suppression and Circadian Rhythm Disruption in Burnout Among Healthcare Professionals: A Systematic Review.Clinics and practice · 2025Review
- Influence of Night Shift Work on Heart Rate Variability in an Age- and Gender-Matched Study Group.Journal of cardiovascular development and disease · 2024Article
- Chronobiology of Parkinson's disease: Past, present and future.The European journal of neuroscience · 2023Review
- A quasi-experimental study into the effects of naps and therapy glasses on fatigue and well-being.Journal of nursing management · 2021Article
- Non-Pharmacological Interventions to Improve Chronic Disease Risk Factors and Sleep in Shift Workers: A Systematic Review and Meta-Analysis.Clocks & sleep · 2021Review
- Sleep quality and common mental disorder in the hospital Nursing team.Revista latino-americana de enfermagem · 2021Article
- Should We Re-think Regulations and Standards for Lighting at Workplaces? A Practice Review on Existing Lighting Recommendations.Frontiers in psychiatry · 2021Article
- Sleep-Related Problems in Night Shift Nurses: Towards an Individualized Interventional Practice.Frontiers in human neuroscience · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo examine the effect of designed dynamic light on staff's quality of sleep with regard to sleep efficiency, level of melatonin in saliva, and subjective perceptions of quality of sleep.
methodsAn intervention group working in designed dynamic light was compared with a control group working in ordinary institutional light at two comparable intensive care units (ICUs). The study included examining (1) melatonin profiles obtained from saliva samples, (2) quality of sleep in terms of sleep efficiency, number of awakenings and subjective assessment of sleep through the use of sleep monitors and sleep diaries, and (3) subjective perceptions of well-being, health, and sleep quality using a questionnaire. Light conditions were measured at both locations.
resultsA total of 113 nurses (88 %) participated. There were no significant differences between the two groups regarding personal characteristics, and no significant differences in total sleep efficiency or melatonin level were found. The intervention group felt more rested (OR 2.03, p = 0.003) and assessed their condition on awakening as better than the control group (OR 2.35, p = 0.001). Intervention-ICU nurses received far more light both during day and evening shifts compared to the control-ICU.
conclusionsThe study found no significant differences in monitored sleep efficiency and melatonin level. Nurses from the intervention-ICU subjectively assessed their sleep as more effective than participants from the control-ICU.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.