Evidence map›Paper›PMID 34234595›Full record

ArticleNature and science of sleep2021

It is All in the Wrist: Wearable Sleep Staging in a Clinical Population versus Reference Polysomnography.

Bernice M Wulterkens, Pedro Fonseca, Lieke W A Hermans, Marco Ross, Andreas Cerny, Peter Anderer, Xi Long, Johannes P van Dijk, Nele Vandenbussche, Sigrid Pillen and 2 more

Abstract read
In one paragraph

Article in Nature and science of sleep, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Performance of cardiorespiratory-based sleep staging in patients using beta blockers.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

12 authors.

Bernice M Wulterkens *Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0003-0338-3038
Pedro Fonseca *Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0003-2932-6402
Lieke W A HermansDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0002-2069-4105
Marco RossSleep and Respiratory Care, Home Healthcare Solutions, Philips Austria GmbH, Vienna, Austria.ORCID 0000-0003-0603-5709
Andreas CernySleep and Respiratory Care, Home Healthcare Solutions, Philips Austria GmbH, Vienna, Austria.ORCID 0000-0003-0068-0168
Peter AndererSleep and Respiratory Care, Home Healthcare Solutions, Philips Austria GmbH, Vienna, Austria.ORCID 0000-0002-3869-6678
Xi LongDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0001-9505-1270
Johannes P van DijkDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0001-6188-2973
Nele VandenbusscheSleep Medicine Center Kempenhaeghe, Heeze, the Netherlands.
Sigrid PillenDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0001-8679-9535
Merel M van GilstDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0003-2138-5686
Sebastiaan OvereemDepartment of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.ORCID 0000-0002-6445-9836

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThere is great interest in unobtrusive long-term sleep measurements using wearable devices based on reflective photoplethysmography (PPG). Unfortunately, consumer devices are not validated in patient populations and therefore not suitable for clinical use. Several sleep staging algorithms have been developed and validated based on ECG-signals. However, translation from these techniques to data derived by wearable PPG is not trivial, and requires the differences between sensing modalities to be integrated in the algorithm, or having the model trained directly with data obtained with the target sensor. Either way, validation of PPG-based sleep staging algorithms requires a large dataset containing both gold standard measurements and PPG-sensor in the applicable clinical population. Here, we take these important steps towards unobtrusive, long-term sleep monitoring.

methodsWe developed and trained an algorithm based on wrist-worn PPG and accelerometry. The method was validated against reference polysomnography in an independent clinical population comprising 244 adults and 48 children (age: 3 to 82 years) with a wide variety of sleep disorders.

resultsThe classifier achieved substantial agreement on four-class sleep staging with an average Cohen's kappa of 0.62 and accuracy of 76.4%. For children/adolescents, it achieved even higher agreement with an average kappa of 0.66 and accuracy of 77.9%. Performance was significantly higher in non-REM parasomnias (kappa = 0.69, accuracy = 80.1%) and significantly lower in REM parasomnias (kappa = 0.55, accuracy = 72.3%). A weak correlation was found between age and kappa (

conclusionThis study shows the feasibility of automatic wearable sleep staging in patients with a broad variety of sleep disorders and a wide age range. Results demonstrate the potential for ambulatory long-term monitoring of clinical populations, which may improve diagnosis, estimation of severity and follow up in both sleep medicine and research.

Indexed as

heart rate variabilityhypnogrampediatricspolysomnographysleep stagingwearable

Identifiers

PMID34234595
PMCPMC8253894

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.