Development of the Korean version of the sleep apnea quality of life index

Hyun Uk Jang, Ki Soo Park, Sang Myung Cheon, Ho Won Lee, Sung Wan Kim, Seung Hoon Lee, Jung Soo Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Objectives. Obstructive sleep apnea (OSA) is a disorder characterized by repetitive partial or complete occlusion of the upper airway during sleep that affects quality of life. The aim of this study was to develop the Korean version of the sleep apnea quality of life index (K-SAQLI) and apply it in Korean patients with OSA. Methods. Ninety-three patients with OSA completed the K-SAQLI. Its construct validity and responsiveness were tested by comparing the baseline and change scores obtained in each domain (i.e., daily functioning, social interactions, emotional functioning, and symptoms) using the medical outcome survey-short form 36 (SF-36). Results. The Cronbach α coefficients of internal reliability exceeded 0.60 in all the domains (daily functioning, 0.89; social interactions, 0.88; emotional functioning, 0.92; symptoms, 0.67; and total, 0.94). The K-SAQLI had a high test-retest correlation coefficient of 0.73 in the 20 randomized selected patients. The construct validity was confirmed by significant correlations with SF-36 subscale scores. Conclusion. The results of this study demonstrate that the K-SAQLI may be applicable for clinical purposes.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalClinical and Experimental Otorhinolaryngology
Issue number1
Publication statusPublished - 2014
Externally publishedYes


  • Calgary sleep apnea quality of life index
  • Medical outcome survey-short form 36
  • Obstructive sleep apnea
  • Quality of life
  • Questionnaires

ASJC Scopus subject areas

  • Surgery
  • Otorhinolaryngology


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