Evidence map›Paper›PMID 28425082›Full record

ArticleSleep & breathing = Schlaf & Atmung2017

Discriminating between positional and non-positional obstructive sleep apnea using some clinical characteristics.

Abderrahim Oulhaj, Sharina Al Dhaheri, Brenda Bin Su, Mohammed Al-Houqani

Abstract read
PubMed Publisher
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Observational
  4. Article
  5. Article
  6. Exploring the Impact of Positional Sleep Apnea in a Turkish Population: Unveiling the Untold Story.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Role of drug-induced sleep endoscopy in evaluation of positional vs non-positional OSA.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2020
    Article
  12. Positional Obstructive Sleep Apnea Syndrome in Elderly Patients.International journal of environmental research and public health · 2020
    Article
  13. 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 at 2 institutions in 1 country.

Abderrahim OulhajInstitute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates.
Sharina Al DhaheriInternal medicine, Tawam hospital, Al Ain, United Arab Emirates.
Brenda Bin SuInternal Medicine, Respirology and Sleep Medicine, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates.
Mohammed Al-HouqaniInternal Medicine, Respirology and Sleep Medicine, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates. alhouqani@uaeu.ac.ae.ORCID http://orcid.org/0000-0003-4481-3911
United Arab Emirates University · AETawam Hospital · AE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe primary objective of this paper was to identify significant factors associated with positional Obstructive Sleep Apnea (POSA) and to provide a clinical tool for discriminating non positional from POSA. Secondary objectives were about estimating the prevalence of POSA, comparing the polysomnographic variables across POSA and non-POSA patients.

methodsThis was a cross sectional study on 278 patients who completed an overnight sleep study for OSA assessment. Patients were aged over 18 years, without central sleep apnea or narcolepsy and slept no less than 20 min in a non-supine position. POSA was defined as a total apnea/hypopnea index (AHI) ≥5 and a ratio supine AHI/non-supine AHI ≥2. The binary logistic regression was used for modeling the likelihood for OSA patient to be positional, and the LASSO method was used for selecting the optimal set of clinical characteristics associated with POSA.

resultsOverall, 53% of patients had POSA. These patients were younger (p = 0.005), had lower BMI (p < 0.0001), lower prevalence of hypertension (p = 0.006), lower Berlin (p = 0.01), and lower STOP (p = 0.001) scores compared to non-POSA patients. Neck and waist circumference were higher in non-POSA (p = 0.005, p = 0.009, respectively) patients. Age, BMI, DBP, Mallampati, and Berlin scores were found to be the best clinical characteristics associated with POSA with an area under the ROC curve (AUC) of 0.71 (95% CI [0.63, 0.78]).

conclusionsHalf of patients referred for the sleep study had POSA. Age, BMI, DBP, Mallampati, and Berlin scores, put together, were shown to act as good clinical characteristics to discriminate between POSA and non-POSA patients.

Indexed as

AdultCross-Sectional StudiesFemaleHumansMaleMiddle AgedPolysomnographyPostureSleep Apnea, ObstructiveSupine PositionApnea-hypopnea indexObstructive sleep apneaPositional or non-positional OSA

Identifiers

PMID28425082
OpenAlexW2606631060

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.