Evidence map›Paper›PMID 42034803›Full record

ArticleSleep & breathing = Schlaf & Atmung2026

Prevalence of comorbid Insomnia and sleep apnoea (COMISA) in patients with obesity hypoventilation syndrome.

Aylin Pihtili, Esen Kiyan, Merve Sinem Oğuz

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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.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Aylin PihtiliIstanbul Faculty of Medicine, Department of Pulmonary Diseases, Istanbul University, Istanbul, Turkey. draylin02@yahoo.com.ORCID http://orcid.org/0000-0001-8846-048X
Esen KiyanIstanbul Faculty of Medicine, Department of Pulmonary Diseases, Istanbul University, Istanbul, Turkey.ORCID http://orcid.org/0000-0003-0023-6518
Merve Sinem OğuzDepartment of Pulmonary Diseases, Iskenderun State Hospital, Hatay, Turkey.ORCID http://orcid.org/0000-0003-3152-0263

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity hypoventilation syndrome (OHS) frequently coexists with obstructive sleep apnoea (OSA), but the prevalence of comorbid insomnia and sleep apnoea (COMISA) in patients with OHS is uncertain. We aimed to determine COMISA prevalence in OHS and to describe the associated clinical and polysomnographic features.

methodsAdults with OSA ± OHS were included. Demographics, comorbidities, daytime arterial blood gases, polysomnography variables, structured sleep-questionnaire responses, and the Epworth Sleepiness Scale (ESS) score were noted.

resultsWe analysed 3,215 patients (516 with OHS, 2,699 with pure OSA; age:50.3 ± 12.0 years; female/male: 1,030/2,185). The prevalence of COMISA was higher in OHS than in pure OSA (32.0% vs. 22.6% p < 0.001). Within the OHS group, COMISA was associated with a higher apnoea–hypopnoea index, oxygen desaturation index, arousal index, and ESS score (all p < 0.001), as well as a higher prevalence of hypertension, diabetes mellitus, and heart failure (p < 0.001, p = 0.002, and p = 0.005, respectively). OHS patients with COMISA also had more severe OSA than COMISA patients alone did (p < 0.001). COMISA in OHS patients was independently associated with higher daytime arterial partial pressure of carbon dioxide (PaCO₂) (adjusted OR [aOR] 1.299; 95% CI 1.198–1.409; p < 0.001), more severe OSA (aOR 2.419; 95% CI 1.288–4.543; p = 0.006), higher ESS score (aOR 1.104; 95% CI 1.047–1.163; p < 0.001).

conclusionsCompared with pure OSA group, COMISA is more common in OHS. High daytime PaCO₂ was independently associated with COMISA in OHS. OHS patients with COMISA also had more fragmented sleep, greater OSA severity, a higher ESS score and a higher prevalence of comorbidities.

Indexed as

Obesity Hypoventilation SyndromeSleep Apnea, ObstructiveSleep Apnea SyndromesSleep Initiation and Maintenance DisordersAdultComorbidityFemaleHumansMaleMiddle AgedPolysomnographyPrevalenceApnoea–hypopnoea indexComorbid insomnia and sleep apnoeaObesity hypoventilation syndromePartial arterial carbon dioxide pressure

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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.