Evidence map›Paper›PMID 32645005›Full record

ArticlePloS one2020

Clinical presentation and comorbidities of obstructive sleep apnea-COPD overlap syndrome.

Dan Adler, Sébastien Bailly, Meriem Benmerad, Marie Joyeux-Faure, Ingrid Jullian-Desayes, Paola Marina Soccal, Jean Paul Janssens, Marc Sapène, Yves Grillet, Bruno Stach and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 57 citations in OpenAlex.

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  11. Screening and Verification COPD-OSA Overlap Syndrome Core Genes Using Bioinformatics.International journal of chronic obstructive pulmonary disease · 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

12 authors at 4 institutions in 2 countries.

Dan AdlerDivision of Pneumology, Geneva University Hospitals, Geneva, Switzerland.ORCID 0000-0002-9915-862X
Sébastien BaillyHP2 Laboratory, INSERM U1042, University Grenoble Alpes, Grenoble, France.
Meriem BenmeradHP2 Laboratory, INSERM U1042, University Grenoble Alpes, Grenoble, France.
Marie Joyeux-FaureHP2 Laboratory, INSERM U1042, University Grenoble Alpes, Grenoble, France.
Ingrid Jullian-DesayesHP2 Laboratory, INSERM U1042, University Grenoble Alpes, Grenoble, France.
Paola Marina SoccalDivision of Pneumology, Geneva University Hospitals, Geneva, Switzerland.
Jean Paul JanssensDivision of Pneumology, Geneva University Hospitals, Geneva, Switzerland.
Marc SapènePrivate Practice Sleep and Respiratory Disease Centre, Nouvelle Clinique Bel Air, Bordeaux, France.
Yves GrilletPrivate Practice Sleep and Respiratory Disease Centre, Valence, France.
Bruno StachPrivate Practice Sleep and Respiratory Disease Centre, Valenciennes, France.
Renaud TamisierHP2 Laboratory, INSERM U1042, University Grenoble Alpes, Grenoble, France.
Jean-Louis PépinDivision of Pneumology, Geneva University Hospitals, Geneva, Switzerland.
Inserm · FRUniversity of Geneva · CHCentre Hospitalier de Valence · FRCentre Hospitalier de Valenciennes · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMore advanced knowledge is needed on how COPD alters the clinical presentation of obstructive sleep apnea (OSA) and how the association of both diseases, known as 'overlap syndrome' (OVS), impacts on cardiovascular health.

objectiveTo investigate differences between patients with OVS and those with moderate-to-severe OSA alone.

methodsA cross-sectional study conducted in the French National Sleep Apnea Registry between January 1997 and January 2017. Univariable and multivariable logistic regression models were used to compare OVS versus OSA alone on symptoms and cardiovascular health.

results46,786 patients had moderate-to-severe OSA. Valid spirometry was available for 16,466 patients: 14,368 (87%) had moderate-to-severe OSA alone and 2098 (13%) had OVS. A lower proportion of OVS patients complained of snoring, morning headaches and excessive daytime sleepiness compared to OSA alone (median Epworth Sleepiness Scale score: 9 [interquartile range (IQR) 6-13] versus 10 (IQR 6-13), respectively; P <0.02). Similarly, a lower proportion of OVS patients (35.6% versus 39.4%, respectively; P <0.01) experienced sleepiness while driving. In contrast, 63.5% of the OVS population experienced nocturia compared to 58.0% of the OSA population (P<0.01). Apnea hypopnea index (36 [25; 52] vs 33.1 [23.3; 50]), oxygen desaturation index (28 [15; 48] vs 25.2 [14; 45]) and mean nocturnal SaO2 (92 [90; 93.8] vs 93 [91.3; 94]) were significantly more altered in the OVS group. Associated COPD had no effect on the prevalence of hypertension and stroke. After controlling for main confounders, COPD severity was associated in a dose-response relationship with a higher prevalence of coronary heart disease, heart failure and peripheral arteriopathy.

conclusionsIn adults with moderate-to-severe OSA, OVS was minimally symptomatic, but exhibited higher odds for prevalent coronary heart disease, heart failure and peripheral arteriopathy.

Indexed as

Cardiovascular DiseasesComorbidityCross-Sectional StudiesFemaleHumansLogistic ModelsMaleMetabolic SyndromeMiddle AgedMultivariate AnalysisPulmonary Disease, Chronic ObstructiveSleep Apnea Syndromes

Identifiers

PMID32645005
PMCPMC7347183
OpenAlexW3042097993

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.