Development and validation of a Chinese version of the Sleep Apnea Quality of Life Index
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SLEEP BREATHING PHYSIOLOGY AND DISORDERS • ORIGINAL ARTICLE
Development and validation of a Chinese version of the Sleep Apnea Quality of Life Index Shui-Tao Hu 1,2
&
Lee-Ing Tsao 3 & Chung-Chieh Yu 4 & Chieh-Yu Liu 5
Received: 14 August 2019 / Revised: 25 December 2019 / Accepted: 7 January 2020 # Springer Nature Switzerland AG 2020
Abstract Objective A Chinese version of the Sleep Apnea Quality of Life Index (SAQLI) for patients with obstructive sleep apnea (OSA) undergoing treatment with continuous positive airway pressure (CPAP) was developed and validated. No Chinese versions of the SAQLI have been previously validated. Methods A convenience sample of 78 patients with OSA who received CPAP therapy at a Taiwanese teaching hospital was enrolled. The SAQLI is organized into four domains: daily functioning, social interactions, emotional functioning, and symptoms. This study evaluated the equivalence (forward translation and back translation), validity, and reliability of a Chinese version of the SAQLI. Results The content validity index (CVI) values of the daily functioning, social interactions, emotional functioning, and symptom domains were .93, .93, .96, and 1.00, respectively. Construct validity of one factor was generated by exploratory factor analysis, and the factor explained the following: (A) daily functioning 54%, (B) social interactions 59%, (C) emotional functioning 64%, and (D) symptoms 75% of total explained variance. The Cronbach’s α internal consistency values for the daily functioning, social interactions, emotional functioning, and symptom domains were 0.68, 0.94, 0.93, and 0.92, respectively. The repeatability of the SAQLI at 7 days and 30 days after the first administration showed reliability coefficients of .94 and .93 (p = 0.001), respectively. Conclusions The results indicate that the Chinese version of the SAQLI has good reliability and validity, as well as refined indicators for assessing the tool’s accuracy. Clinicians may thus use the scale to examine the quality of life in Chinese-speaking patients with OSA undergoing CPAP therapy. Keywords Chinese version . Sleep apnea . Life quality
* Shui-Tao Hu [email protected] 1
Department of Nursing, Chang Gung Memorial Hospital, Keelung, Taiwan
2
College of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan
3
College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
4
Division of Pulmonary, Critical Care, & Sleep Medicine, and College of Medicine, Chang Gung Memorial Hospital and Chang Gung University, Keelung/Taoyuan, Taiwan
5
Department of Speech Language Pathology and Audiology, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
Abbreviations CPAP Continuous positive airway pressure CVI Content validity index EFA Exploratory factor analysis HT Height OSA Obstructive sleep apnea NC Neck circumference QLI Quality of Life Index QOL Quality of life SAQLI Sleep Apnea Quality of Life Index
Introduction Obstructive sleep apnea (OSA) is a common sl
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