+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The Epworth Sleepiness Scale may not reflect objective measures of sleepiness or sleep apnea



The Epworth Sleepiness Scale may not reflect objective measures of sleepiness or sleep apnea



Neurology 52(1): 125-131



Objective: To assess the validity of the Epworth Sleepiness Scale score (ES) as a measure of sleepiness among patients suspected or confirmed to have obstructive sleep apnea syndrome. Background: The ES is used with increasing frequency as a measure of excessive daytime sleepiness in part because several studies suggested that the ES correlates with mean sleep latency (MSL) on the Multiple Sleep Latency Test and with severity of sleep apnea among patients with that disorder. However, associations identified between the ES and other measures were not strong or consistent. Methods: The authors used regression models and retrospective data from a relatively large series of 237 patients to restudy how ES relates to MSL, to a simple self-rating of problem sleepiness (available for 141 patients), and to two polysomnographic measures of sleep apnea severity: the number of apneas or hypopneas per hour of sleep and the minimum recorded oxygen saturation. Results: The ES had a statistically significant association with self-rated problem sleepiness but not with MSL or measures of sleep apnea severity. Male gender, adjusted for potential confounding variables, had considerably more influence on the ES than did MSL or measures of sleep apnea severity. Conclusions: Our data suggest that the subjectively derived ES cannot be used as a surrogate for the objectively determined MSL.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 011467685

Download citation: RISBibTeXText

PMID: 9921859

DOI: 10.1212/wnl.52.1.125


Related references

Subjective sleepiness ratings (Epworth sleepiness scale) do not reflect the same parameter of sleepiness as objective sleepiness (maintenance of wakefulness test) in patients with narcolepsy. Clinical Neurophysiology 110(12): 2131-2135, 1999

Daytime sleepiness, snoring, and obstructive sleep apnea. The Epworth Sleepiness Scale. Chest 103(1): 30-36, 1993

Detection of daytime sleepiness using Epworth Sleepiness Scale and a 3-item questionnaire in obstructive sleep apnea. Pneumologie 66(3): 184-187, 2012

Sleepiness in obstructive sleep apnea syndrome and simple snoring evaluated by the Epworth Sleepiness Scale. Journal of Sleep Research 8(4): 319-320, 1999

Correlation of Epworth Sleepiness Scale with multiple sleep latency test and its diagnostic accuracy in assessing excessive daytime sleepiness in patients with obstructive sleep apnea hypopnea syndrome. Chinese Medical Journal 126(17): 3245-3250, 2013

Comparison of Predictor of Desaturation Disorders and Daytime Sleepiness Based On Epworth Sleepiness Scale and STOP-BANG Questionnaires in Mild to Moderate Obstructive Sleep Apnea Patients. Open Access Macedonian Journal of Medical Sciences 6(9): 1617-1621, 2018

Daytime sleepiness measured by the Epworth Sleepiness Scale and the Multiple Sleep Latency Test in patients with sleep disorders. Neurology 46(2 Suppl. ): A485, 1996

The assessment of daytime sleep propensity: A comparison between the Epworth sleepiness scale and a newly developed resistance to sleepiness scale. Clinical Neurophysiology 114(6): 1027-1033, 2003

The multiple sleep latency test and Epworth sleepiness scale in the assessment of daytime sleepiness. Journal of Sleep Research 9(4): 399-401, 2000

Sleep Apnea Clinical Score, Berlin Questionnaire, or Epworth Sleepiness Scale: which is the best obstructive sleep apnea predictor in patients with COPD?. International Journal of General Medicine 8: 275-281, 2015

The Epworth sleepiness scale in the identification of obstructive sleep apnea. Journal of Nervous and Mental Disease 196(5): 429-431, 2008

A new suggestion for the Epworth Sleepiness Scale in obstructive sleep apnea. European Archives of Oto-Rhino-Laryngology 272(1): 247-252, 2015

A comparison of the Epworth Sleepiness Scale and the Functional Outcomes of Sleepiness Questionnaire in the assessment of excessive daytime sleepiness in the elderly. Sleep 24(Abstract Suppl.): A233-A234, 2001

Epworth sleepiness scale scores may not reflect multiple sleep latency test results. Neurology 50(4 Suppl. 4): A67, 1998

The Sleepmed Insomnia Index And Epworth Sleepiness Scale As Outcome Measures In Patients With Moderately Severe Obstructive Sleep Apnea (Osa) Treated With Continuous Positive Airway Pressure (Cpap). Chest 132(4): 646a-1, 2007