Evidence map›Paper›PMID 34035333›Full record

ArticleScientific reports2021

Light-based methods for predicting circadian phase in delayed sleep-wake phase disorder.

Jade M Murray, Michelle Magee, Tracey L Sletten, Christopher Gordon, Nicole Lovato, Krutika Ambani, Delwyn J Bartlett, David J Kennaway, Leon C Lack, Ronald R Grunstein and 3 more

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Article
  2. Research priorities to improve classification of sleep-wake disorders.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Review
  3. The relationship between sleep and circadian-sleep phase angles based on dim light melatonin onset predicted from light and activity data.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Jade M MurrayTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Michelle MageeTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Tracey L SlettenTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Christopher GordonCooperative Research Centre for Alertness, Safety and Productivity, Clayton, VIC, Australia.
Nicole LovatoCooperative Research Centre for Alertness, Safety and Productivity, Clayton, VIC, Australia.
Krutika AmbaniTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Delwyn J BartlettCooperative Research Centre for Alertness, Safety and Productivity, Clayton, VIC, Australia.
David J KennawayRobinson Research Institute and School of Medicine, University of Adelaide, Adelaide, SA, Australia.
Leon C LackCooperative Research Centre for Alertness, Safety and Productivity, Clayton, VIC, Australia.
Ronald R GrunsteinCooperative Research Centre for Alertness, Safety and Productivity, Clayton, VIC, Australia.
Steven W LockleyTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Shantha M W RajaratnamTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia.
Andrew J K PhillipsTurner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, 18 Innovation Walk, Clayton, VIC, 3800, Australia. andrew.phillips@monash.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methods for predicting circadian phase have been developed for healthy individuals. It is unknown whether these methods generalize to clinical populations, such as delayed sleep-wake phase disorder (DSWPD), where circadian timing is associated with functional outcomes. This study evaluated two methods for predicting dim light melatonin onset (DLMO) in 154 DSWPD patients using ~ 7 days of sleep-wake and light data: a dynamic model and a statistical model. The dynamic model has been validated in healthy individuals under both laboratory and field conditions. The statistical model was developed for this dataset and used a multiple linear regression of light exposure during phase delay/advance portions of the phase response curve, as well as sleep timing and demographic variables. Both models performed comparably well in predicting DLMO. The dynamic model predicted DLMO with root mean square error of 68 min, with predictions accurate to within ± 1 h in 58% of participants and ± 2 h in 95%. The statistical model predicted DLMO with root mean square error of 57 min, with predictions accurate to within ± 1 h in 75% of participants and ± 2 h in 96%. We conclude that circadian phase prediction from light data is a viable technique for improving screening, diagnosis, and treatment of DSWPD.

Indexed as

LightAdolescentAdultBiomarkersCircadian RhythmFemaleHumansMaleMiddle AgedPrognosisSensitivity and SpecificitySleepSleep Disorders, Circadian RhythmTrauma Severity IndicesYoung AdultBiomarkers

Identifiers

PMID34035333
PMCPMC8149449

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Registered trials

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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.