Evidence map›Paper›PMID 42501151›Full record

ArticleSleep & breathing = Schlaf & Atmung2026

Examining the association between CT-defined low tongue posture and CPAP adherence.

Yosuke Shimamura, Shintaro Chiba, Konomi Ikeda, Tomoko Yagi, Robson Capasso

Abstract read
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In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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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

1 citing paper in PubMed.

  1. 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

5 authors.

Yosuke ShimamuraDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan. yousuke-shimamura4039@hotmail.co.jp.ORCID http://orcid.org/0009-0005-1875-0955
Shintaro ChibaDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Konomi IkedaDepartment of Otorhinolaryngology, Jikei University School of Medicine, Tokyo, Japan.
Tomoko YagiSchool of Medical Technology, Kurume University, Kurume, Fukuoka, Japan.
Robson CapassoDepartment of Otolaryngology - Head and Neck Surgery, Stanford University Medical Center, Stanford, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCPAP therapy is the mainstay treatment for OSA, but adherence remains challenging. This study evaluated whether CT-defined low tongue posture (LTP), operationalized as a tongue-palate air gap on sagittal CT, is associated with CPAP adherence.

methodsRetrospective analysis of 430 adults with OSA (AHI ≥ 20) who underwent PSG, CT imaging, and CPAP initiation at our sleep center. CT-defined LTP was assessed on mid-sagittal CT. CPAP adherence at 3 months was obtained from device-recorded data. Logistic regression identified factors associated with good adherence, defined as ≥ 70% and ≥ 50% of nights with ≥ 4 h of use.

resultsCT-defined LTP was observed in 115 patients (26.7%). Patients with CT-defined LTP had lower average CPAP adherence (39.6% vs. 54.1%, p < 0.001). In multivariate analysis, CT-defined LTP was associated with lower odds of good adherence at both the 70% (adjusted OR 0.447, 95% CI 0.272-0.734, p = 0.001) and 50% (adjusted OR 0.496, 95% CI 0.319-0.772, p = 0.002) thresholds. The model showed limited specificity at the 70% threshold (22.5%) and improved balance at the 50% threshold (specificity 68.3%).

conclusionsCT-defined LTP was associated with poorer CPAP adherence. Given its non-standardized CT definition and limited specificity at the 70% threshold, it should be interpreted as an adjunctive risk marker rather than a standalone screening tool.

Indexed as

Continuous Positive Airway PressurePatient CompliancePostureSleep Apnea, ObstructiveTomography, X-Ray ComputedTongueAdultAgedFemaleHumansMaleMiddle AgedPolysomnographyRetrospective StudiesAdherenceComputed tomographyCPAPCT-defined low tongue postureObstructive sleep apneaTongue-palate air gap

Identifiers

PMID42501151

What OpenQuestion holds

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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.