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Development and validation of a Chinese version of the Sleep Apnea Quality of Life Index

  • Sleep Breathing Physiology and Disorders • Original Article
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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.

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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

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Acknowledgments

We wish to express our special thanks to SAQLI author W. Ward Flemons, who agreed to the adaption of this scale for use in Taiwan and provided much assistance in this study.

Funding

This study was funded by the Chang Gung Medical Research Program of Keelung, Taiwan (grant CMRPG2C0171).

Author information

Authors and Affiliations

  1. Department of Nursing, Chang Gung Memorial Hospital, Keelung, Taiwan

    Shui-Tao Hu

  2. College of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan

    Shui-Tao Hu

  3. College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan

    Lee-Ing Tsao

  4. Division of Pulmonary, Critical Care, & Sleep Medicine, and College of Medicine, Chang Gung Memorial Hospital and Chang Gung University, Keelung/Taoyuan, Taiwan

    Chung-Chieh Yu

  5. Department of Speech Language Pathology and Audiology, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan

    Chieh-Yu Liu

Authors
  1. Shui-Tao Hu
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  2. Lee-Ing Tsao
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  3. Chung-Chieh Yu
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  4. Chieh-Yu Liu
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Contributions

S-T H designed the study, conducted the analysis, interpreted data, and contributed to the drafring of the manuscript. L-I T interpreted data, and contributed to the drafring of the manuscript. C-C Y contributed to the drafting of the manuscript and revised the paper. C-Y L conducted the analysis and interpreted the data. All of the authors read and approved the final manuscript.

Corresponding author

Correspondence to Shui-Tao Hu.

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Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This study received approval from the Chang Gung Memorial Hospital Institutional Review Board (IRB ID: 101-4853B). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study. During the data collection process, the participants were guaranteed total privacy. The confidentiality of the collected data was strictly adhered to. Each participant was informed of the right to withdraw from the study at any time during the data collection.

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Hu, ST., Tsao, LI., Yu, CC. et al. Development and validation of a Chinese version of the Sleep Apnea Quality of Life Index. Sleep Breath 24, 591–597 (2020). https://doi.org/10.1007/s11325-020-02012-5

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  • DOI: https://doi.org/10.1007/s11325-020-02012-5

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