Evidence map›Paper›PMID 25855470›Full record

ArticleSleep & breathing = Schlaf & Atmung2015

The relationships between the clinical and polysomnographic findings and the olfactory function in patients with obstructive sleep apnea syndrome.

Emre Günbey, Aygül Güzel, Rıfat Karlı, Recep Ünal

Abstract read
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In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Olfactory function in patients with obstructive sleep apnea: a meta-analysis study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2021
    Pooled it
  2. [Influencing factors of olfactory impairment in OSA and construction of nomogram prediction model].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2025
    Article
  3. Article
  4. Article
  5. Sleep-Disordered Breathing Is Associated With Impaired Odor Identification in Older U.S. Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021
    Article
  6. [The correlation between obstructive sleep apnea and olfaction function].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2021
    Article
  7. Article
  8. Article
  9. Olfactory evaluation in obstructive sleep apnoea patients.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2018
    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

4 authors.

Emre GünbeyFaculty of Medicine, Department of Otolaryngology, Ondokuz Mayıs University, Samsun, Turkey. emregunbeymd@hotmail.com.
Aygül GüzelFaculty of Medicine, Department of Chest Disease, Ondokuz Mayıs University, Samsun, Turkey.
Rıfat KarlıFaculty of Medicine, Department of Otolaryngology, Ondokuz Mayıs University, Samsun, Turkey.
Recep ÜnalFaculty of Medicine, Department of Otolaryngology, Ondokuz Mayıs University, Samsun, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to investigate the relationships between the clinical and polysomnographic findings and the olfactory test results in patients with obstructive sleep apnea syndrome (OSAS).

methodsFour groups were established: non-snoring controls (group 1), non-apneic snorers (group 2), mild-moderate OSAS (group 3), and severe OSAS (group 4). The polysomnographic findings, otorhinolaryngologic findings, Epworth Sleepiness Scale (ESS), and Sniffin' Sticks olfactory test results of the four groups were compared. The relationships between the clinical data and the olfactory parameters were evaluated.

resultsGroup 4 had the worst odor identification and discrimination scores. Non-apneic snorers also had worse odor parameters compared with the non-snorer controls. A significant negative correlation was found among the ESS, apnea-hypopnea index (AHI), mean arterial oxygen saturation, and odor identification and discrimination. Significant negative correlations were found between the tongue and tongue base sizes and among all olfactory parameters.

conclusionOur study revealed olfactory dysfunction in patients with OSAS. A strong negative correlation between the olfactory parameters and the severity of sleep apnea was also found. Olfactory tests may be used to predict the presence and severity of OSAS in the future.

Indexed as

PolysomnographyAdultAgedDouble-Blind MethodFemaleHumansMaleMiddle AgedOlfaction DisordersProspective StudiesReference ValuesSensory ThresholdsSleep Apnea, ObstructiveStatistics as TopicObstructive sleep apnea syndromeOlfactory dysfunctionPolysomnographySniffin’ Sticks

Identifiers

What Socratic 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 Socratic graph.