Evidence map›Paper›PMID 36973594›Full record

ArticleSleep & breathing = Schlaf & Atmung2023

Body posture as a factor determining sleep quality in patients using non-invasive ventilation.

Daniel Alfaiate, Alexandre Pereira, Patrícia Guerra, Nuno Pinto

Abstract read
PubMed Publisher
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2023. 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
3.0field-weighted citation impact, top 8% of its field
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, 17 citations in OpenAlex.

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  11. Arousal burden is highest in supine sleeping position and during light sleep.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
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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

4 authors at 3 institutions in 1 country.

Daniel AlfaiateInstituto Politécnico de Castelo Branco Health School, Castelo Branco, Portugal. dadalfaiate@gmail.com.ORCID 0000-0002-5581-4242
Alexandre PereiraCova da Beira University Hospital Centre, Covilhã, Portugal.
Patrícia GuerraMédio Tejo Hospital Centre, Torres Novas, Portugal.
Nuno PintoFaculty of Health Sciences, University of Beira Interior, Covilhã, Portugal.
Hospital Center of Cova da Beira · PTPolytechnic Institute of Castelo Branco · PTUniversity of Beira Interior · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveSleep quality is influenced by multiple factors. Slow-wave sleep and REM sleep play a key role in homeostasis and are useful indicators of sleep quality. Studies indicate that obstructive sleep apnea (OSA) in the supine position correlates with anatomical changes that exacerbate respiratory events and influence the effectiveness of ventilation therapy. This study aimed to evaluate the correlation of body posture with polysomnographic data and adherence of patients using continuous positive airway pressure (CPAP). MATERIAL AND

methodsThis was a retrospective study of patients with OSA who had polysomnography in Rainha Santa Isabel Hospital's sleep laboratory in Torres Novas, Portugal, and met all the inclusion and exclusion criteria. Sociodemographic, polysomnographic, and ventilation therapy variables were collected from that sleep laboratory database between 2015 and 2019.

resultsIn 30 patients with OSA, residual apnea-hypopnea index (AHIr) and arousal index were lower in the non-supine position compared to the supine position (p value 0.005 and 0.009 respectively). As measures of sleep quality, total sleep time in SWS and REM sleep were greater in the non-supine position compared to the supine position (p value of 0.002 and 0.010 respectively).

conclusionThe findings suggest that a supine position significantly impairs sleep quality mainly by increasing the number of respiratory events and associated sleep fragmentation. The findings also suggest that the difference in AHIr between supine and non-supine positions may contribute to non-adherence with CPAP in patients with OSA.

Indexed as

Noninvasive VentilationSleep Apnea, ObstructiveHumansPostureRetrospective StudiesSleepSleep QualitySupine PositionComplianceNoninvasive ventilationPostureSleep

Identifiers

PMID36973594
OpenAlexW4360999371

What OpenQuestion holds

Textmetadata
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.