Trial reportOccupational and environmental medicine2016
Scheduled evening sleep and enhanced lighting improve adaptation to night shift work in older adults.
Trial report in Occupational and environmental medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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
17 citing papers in PubMed, 42 citations in OpenAlex.
- Bright environmental light improves the sleepiness of nightshift ICU nurses.Critical care (London, England) · 2018Trial
- Understanding sleep health challenges of defence shift workers to design a digital, sleep and circadian management tool.Scientific reports · 2025Article
- SleepSync: Early Testing of a Personalised Sleep-Wake Management Smartphone Application for Improving Sleep and Cognitive Fitness in Defence Shift Workers.Clocks & sleep · 2024Article
- Evaluation of sleep strategies between night shifts in actual shift workers.Sleep health · 2024Observational
- Circadian Rhythm Sleep-Wake Disorders in Older Adults.Sleep medicine clinics · 2022Review
- A Growing Link between Circadian Rhythms, Type 2 Diabetes Mellitus and Alzheimer's Disease.International journal of molecular sciences · 2022Review
- Timing of Sleep in the Break Between Two Consecutive Night-Shifts: The Effect of Different Strategies on Daytime Sleep and Night-Time Neurobehavioural Function.Nature and science of sleep · 2022Article
- No Effect of Chronotype on Sleepiness, Alertness, and Sustained Attention during a Single Night Shift.Clocks & sleep · 2021Article
- Association between chronotype and psychomotor performance of rotating shift workers.Scientific reports · 2021Observational
- The effects of bright light treatment on subjective and objective sleepiness during three consecutive night shifts among hospital nurses - a counter-balanced placebo-controlled crossover study.Scandinavian journal of work, environment & health · 2021Article
- Sleep quality and common mental disorder in the hospital Nursing team.Revista latino-americana de enfermagem · 2021Article
- Scheduled afternoon-evening sleep leads to better night shift performance in older adults.Occupational and environmental medicine · 2020Article
- Shift rotation, circadian misalignment and excessive body weight influence psychomotor performance: a prospective and observational study under real life conditions.Scientific reports · 2019Observational
- Cognitive Impairments during the Transition to Working at Night and on Subsequent Night Shifts.Journal of biological rhythms · 2019Article
- The Impact of Shift Work on Sleep, Alertness and Performance in Healthcare Workers.Scientific reports · 2019Article
- Advancing the sleep/wake schedule impacts the sleep of African-Americans more than European-Americans.PloS one · 2017Article
- Prediction of individual differences in circadian adaptation to night work among older adults: application of a mathematical model using individual sleep-wake and light exposure data.Chronobiology internationalArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
objectivesWe tested whether a sleep and circadian-based treatment shown to improve circadian adaptation to night shifts and attenuate negative effects on alertness, performance and sleep in young adults would also be effective in older adults.
methodsWe assessed subjective alertness, sustained attention (psychomotor vigilance task, PVT), sleep duration (actigraphy) and circadian timing (salivary dim-light melatonin onset, DLMO) in 18 older adults (57.2±3.8 years; mean±SD) in a simulated shift work protocol. 4 day shifts were followed by 3 night shifts in the laboratory. Participants slept at home and were randomised to either the treatment group (scheduled evening sleep and enhanced lighting during the latter half of night shifts) or control group (ad-lib sleep and typical lighting during night shifts).
resultsCompared with day shifts, alertness and sustained attention declined on the first night shift in both groups, and was worse in the latter half of the night shifts. Alertness and attention improved on nights 2 and 3 for the treatment group but remained lower for the control group. Sleep duration in the treatment group remained similar to baseline (6-7 hours) following night shifts, but was shorter (3-5 hours) following night shifts in the control group. Treatment group circadian timing advanced by 169.3±16.1 min (mean±SEM) but did not shift (-9.7±9.9 min) in the control group.
conclusionsThe combined treatment of scheduled evening sleep and enhanced lighting increased sleep duration and partially aligned circadian phase with sleep and work timing, resulting in improved night shift alertness and performance.
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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.