ArticleSleep2026
Sleepiness and attention in sleep-clinic patients and their associations with apnea severity and treatment.
Article in Sleep, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
STUDY
objectivesExcessive daytime sleepiness (EDS) is common in patients with sleep disorders, particularly obstructive sleep apnea (OSA). The Epworth Sleepiness Scale (ESS) and the Psychomotor Vigilance Test (PVT) are often used to measure sleepiness and attention/vigilance, respectively. However, whether these measures are correlated and their relationship to OSA severity/treatment remains understudied. This study examined these associations in a sleep center population.
methodsWe performed a prospective study of 165 participants (119 [72.1%] with diagnosed OSA) presenting to a sleep disorders clinic and completing ESS and PVT. Associations among ESS, PVT, OSA severity, and positive airway pressure (PAP) usage and efficacy were examined using Pearson's correlations, unadjusted and controlling for age, sex, and body mass index.
resultsResults showed no significant correlations between ESS and PVT measures of attention/vigilance. While higher ESS scores correlated with more severe apnea-hypopnea indices in patients with OSA, no association was found with OSA severity and PVT measures. Among participants using PAP, greater hours/night of usage was associated with lower ESS scores, but not with better PVT performance.
conclusionsWe found no association between sleepiness on the ESS and attention/vigilance on PVT among a sleep center population. ESS scores tracked more closely to OSA severity/treatment than PVT measures. The findings suggest that the sleepiness measured by the ESS and measures of sustained attention under monotonous conditions from the PVT capture distinct symptoms. While the ESS is commonly used, further research is needed to determine if the PVT should also be incorporated into clinical practice.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.