Format

Send to:

Choose Destination
See comment in PubMed Commons below
Sleep Breath. 2011 Sep;15(3):377-84. doi: 10.1007/s11325-010-0343-6. Epub 2010 Apr 1.

The reliability and validity of the Korean version of the Epworth sleepiness scale.

Author information

  • 1Department of Neurology, Dongsan Medical Center, Keimyung University School of Medicine, Choon-Gu, Daegu, South Korea. neurocho@dsmc.or.kr

Abstract

OBJECTIVE:

The Epworth sleepiness scale (ESS) is widely used to measure the subject's average sleep propensity across those different situations in daily life, particularly in patients with sleep-disordered breathing. The purposes of this study were to test the hypothesis that the Korean version of the ESS (KESS) is valid and evaluate its usefulness.

MATERIALS AND METHODS:

We developed the KESS, which involved translating into Korean and then translating back into English to check its accuracy. A total of 273 participants (181 obstructive sleep apnea (OSA)-37 mild, 61 moderate, 83 severe, 32 simple snoring and 60 normal) were included in this study. All subjects completed the overnight polysomnograph and 53 of the total subjects were randomly selected for a retest with the questionnaire approximately 2∼4 weeks later. The associations between KESS and the degree of OSA were examined through ANCOVA, adjusted for age, sex and BMI.

RESULTS:

The total score and each item's score of KESS in patients with OSA were significantly higher than subjects with normal controls (p < 0.01). As the severity of OSA increased, the KESS showed significantly increasing patterns (p for trend <0.01). The KESS in patient groups showed good internal consistency (Cronbach's α = 0.90) and test-retest reliability (r = 0.78 to 0.93).

CONCLUSION:

The KESS is a reliable and valid tool for screening patients with daytime sleepiness in Korea.

PMID:
20358406
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Springer
    Loading ...
    Write to the Help Desk