Evidence map›Paper›PMID 33411184›Full record

ArticleSleep & breathing = Schlaf & Atmung2021

The design of RIP belts impacts the reliability and quality of the measured respiratory signals.

Kristofer Montazeri, Sigurdur Aegir Jonsson, Jon Skirnir Agustsson, Marta Serwatko, Thorarinn Gislason, Erna S Arnardottir

Abstract read
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Thoracoabdominal Asynchrony in Healthy Children.Journal of sleep research · 2026
    Article
  2. Observational
  3. Validation of a deep learning-based system for sleep staging, arousal detection, and respiratory event scoring in atrial fibrillation patients.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Article
  4. Review
  5. From classic to cutting-edge: technological approaches to respiratory physiological signals in assessing sleep-disordered breathing.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

6 authors.

Kristofer MontazeriNox Research, Nox Medical, 105, Reykjavik, Iceland.
Sigurdur Aegir JonssonNox Research, Nox Medical, 105, Reykjavik, Iceland.
Jon Skirnir AgustssonNox Research, Nox Medical, 105, Reykjavik, Iceland. jons@noxmedical.com.ORCID http://orcid.org/0000-0003-4309-6439
Marta SerwatkoDepartment of Engineering, Reykjavik University, Reykjavik, Iceland.
Thorarinn GislasonSleep Department, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.
Erna S ArnardottirDepartment of Engineering, Reykjavik University, Reykjavik, Iceland.

Funding

H2020 Innovation In SMEs #733461Icelandic Centre for Research 153523-0611Icelandic Centre for Research 174067-051
6 · The paper itself

Abstract

purposeEvaluate the effect of respiratory inductance plethysmography (RIP) belt design on the reliability and quality of respiratory signals. A comparison of cannula flow to disposable cut-to-fit, semi-disposable folding and disposable RIP belts was performed in clinical home sleep apnea testing (HSAT) studies.

methodsThis was a retrospective study using clinical HSAT studies. The signal reliability of cannula, thorax, and abdomen RIP belts was determined by automatically identifying periods during which the signals did not represent respiratory airflow and breathing movements. Results were verified by manual scoring. RIP flow quality was determined by examining the correlation between the RIP flow and cannula flow when both signals were considered reliable.

resultsOf 767 clinical HSAT studies, mean signal reliability of the cut-to-fit, semi-disposable, and disposable thorax RIP belts was 83.0 ± 26.2%, 76.1 ± 24.4%, and 98.5 ± 9.3%, respectively. The signal reliability of the cannula was 92.5 ± 16.1%, 87.0 ± 23.3%, and 85.5 ± 24.5%, respectively. The automatic assessment of signal reliability for the RIP belts and cannula flow had a sensitivity of 50% and a specificity of 99% compared with manual assessment. The mean correlation of cannula flow to RIP flow from the cut-to-fit, semi-disposable, and disposable RIP belts was 0.79 ± 0.24, 0.52 ± 0.20, and 0.86 ± 0.18, respectively.

conclusionThe design of RIP belts affects the reliability and quality of respiratory signals. The disposable RIP belts that had integrated contacts and did not fold on top of themselves performed the best. The cut-to-fit RIP belts were most likely to be unreliable, and the semi-disposable folding belts produced the lowest-quality RIP flow signals compared to the cannula flow signal.

Indexed as

Equipment DesignRespirationAdultFemaleHumansMaleMiddle AgedPlethysmographyReproducibility of ResultsRetrospective StudiesObstructive sleep apnea (OSA)Respiratory airflowRespiratory inductance plethysmography (RIP) beltsSignal qualitySignal reliability

Identifiers

PMID33411184
PMCPMC8376735

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.