Evidence map›Paper›PMID 30968492›Full record

ArticleJournal of sleep research2019

Definition of excessive daytime sleepiness in the general population: Feeling sleepy relates better to sleep-related symptoms and quality of life than the Epworth Sleepiness Scale score. Results from an epidemiological study.

Elin H Thorarinsdottir, Erla Bjornsdottir, Bryndis Benediktsdottir, Christer Janson, Thorarinn Gislason, Thor Aspelund, Samuel T Kuna, Allan I Pack, Erna S Arnardottir

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Article in Journal of sleep research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 64 citations in OpenAlex.

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  14. Investigation and management of residual sleepiness in CPAP-treated patients with obstructive sleep apnoea: the European view.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  15. Article
  16. Article
  17. The negative health effects of having a combination of snoring and insomnia.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 3 countries.

Elin H ThorarinsdottirDepartment of Medicine, Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland.ORCID 0000-0001-6561-3746
Erla BjornsdottirFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Bryndis BenediktsdottirFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Christer JansonDepartment of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
Thorarinn GislasonFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Thor AspelundFaculty of Medicine, University of Iceland, Reykjavik, Iceland.
Samuel T KunaDepartment of Medicine and Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Allan I PackDepartment of Medicine and Center for Sleep and Circadian Neurobiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Erna S ArnardottirSchool of Science and Engineering, Reykjavik University, Reykjavik, Iceland.
University of Iceland · ISReykjavík University · ISPhiladelphia VA Medical Center · USUniversity of Pennsylvania · USUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many different subjective tools are being used to measure excessive daytime sleepiness (EDS) but the most widely used is the Epworth Sleepiness Scale (ESS). However, it is unclear if using the ESS is adequate on its own when assessing EDS. The aim of this study was to estimate the characteristics and prevalence of EDS using the ESS and the Basic Nordic Sleep Questionnaire (BNSQ) in general population samples. Participants aged 40 years and older answered questions about sleepiness, health, sleep-related symptoms and quality of life. Two groups were defined as suffering from EDS: those who scored >10 on the ESS (with increased risk of dozing off) and those reporting feeling sleepy during the day ≥3 times per week on the BNSQ. In total, 1,338 subjects (53% male, 74.1% response rate) participated, 13.1% reported an increased risk of dozing off, 23.2% reported feeling sleepy and 6.4% reported both. The prevalence of restless leg syndrome, nocturnal gastroesophageal reflux, difficulties initiating and maintaining sleep and nocturnal sweating was higher among subjects reporting feeling sleepy compared to non-sleepy subjects. Also, subjects reporting feeling sleepy had poorer quality of life and reported more often feeling unrested during the day than non-sleepy subjects. However, subjects reporting increased risk of dozing off (ESS > 10) without feeling sleepy had a similar symptom profile as the non-sleepy subjects. Therefore, reporting only risk of dozing off without feeling sleepy may not reflect problematic sleepiness and more instruments in addition to ESS are needed when evaluating daytime sleepiness.

Indexed as

Disorders of Excessive SomnolenceEpidemiologic StudiesFemaleHumansMaleMiddle AgedPrevalenceQuality of LifeSurveys and QuestionnairesBasic Nordic Sleep Questionnairesubjective sleepiness

Identifiers

PMID30968492
OpenAlexW2937930691

What OpenQuestion 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 OpenQuestion graph.