Journal of Hospice and Palliative Care

Korean Society for Hospice and Palliative Care (한국호스피스완화의료학회)
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Cross-Cultural Validation of the McGill Quality of Life Questionnaire-Revised (MQOL-R), Korean Version; A Focus on People at the End of Life

  • Received : 2022.04.06
  • Accepted : 2022.07.19
  • Published : 2022.09.01
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Abstract

Purpose: The purpose of this study was to confirm the factor structure of the McGill Quality of Life Questionnaire-Revised (MQOL-R) in the context of Korean culture and to verify its reliability and validity. Methods: The participants comprised terminal cancer patients aged 25 or older, and data from 164 participants were analyzed. The study was conducted in the following order: translation, expert review, reverse translation, preliminary investigation and interviews, and completion of the final version. Confirmatory factor analysis was applied to evaluate the validity of the instrument, and the Beck Depression Inventory, Korean version (K-BDI) was applied to confirm the criterion validity of the MQOL-R Korean version. The Cronbach's alpha coefficient, representing internal consistency, was measured to evaluate reliability. Results: Cronbach's alpha for all 14 questions was 0.862. The model fit indices for confirmatory factor analysis were within the acceptance criteria. The factor loadings of all four factors were over 0.50, and convergent validity and discriminant validity were confirmed. Regarding criterion validity, a negative correlation was found between the four factors of MQOL-R Korean version and the K-BDI. Conclusion: The MQOL-R Korean version, the reliability and validity of which were verified in this study, is a 15-item tool consisting of 14 items dealing with four physical, psychological, existential, and social factors and a single item evaluating the overall quality of life. The MQOL-R Korean version is an instrument that can more concisely and effectively measure the quality of life of patients with life-threatening diseases.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2017R1A2B1009570).

References

  1. Kim HJ, Cho JH. Understanding quality of life among adult patients with terminal cancer in South Korea: an integrative review. J Korean Acad Soc Adult Nurs 2017;29:419-31. https://doi.org/10.7475/kjan.2017.29.4.419
  2. Yun SY, Kang JY. Preferences for care near the end of life according to chronic patients' characteristics. Korean J Adult Nurs 2013;25:207-18. https://doi.org/10.7475/kjan.2013.25.2.207
  3. Cohen SR, Sawatzky R, Russell LB, Shahidi J, Heyland DK, Gadermann AM. Measuring the quality of life of people at the end of life: the McGill Quality of Life Questionnaire-revised. Palliat Med 2017;31:120-9. https://doi.org/10.1177/0269216316659603
  4. Groenvold M, Petersen MA, Aaronson NK, Arraras JI, Blazeby JM, Bottomley A, et al. The development of the EORTC QLQ-C15-PAL: a shortened questionnaire for cancer patients in palliative care. Eur J Cancer 2006;42: 55-64. https://doi.org/10.1016/j.ejca.2005.06.022
  5. Lyons KD, Bakitas M, Hegel MT, Hanscom B, Hull J, Ahles TA. Reliability and validity of the functional assessment of Chronic Illness Therapy-Palliative Care (FACIT-Pal) Scale. J Pain Symptom Manage 2009;37:23-32. https://doi.org/10.1016/j.jpainsymman.2007.12.015
  6. Cohen SR, Mount BM, Strobel MG, Bui F. The McGill Quality of Life Questionnaire: a measure of quality of life appropriate for people with advanced disease. A preliminary study of validity and acceptability. Palliat Med 1995;9:207-19. https://doi.org/10.1177/026921639500900306
  7. Kang H. A guide on the use of factor analysis in the assessment of construct validity. J Korean Acad Nurs 2013;43;587-94. https://doi.org/10.4040/jkan.2013.43.5.587
  8. Rhee MK, Lee YH, Park SH, Sohn CH, Chung YC, Hong SK, et al. A standardization study of Beck Depression Inventory (I): Korean Version (K-BDI): reliability and factor analysis. Kor J Psychophathol 1995;4:77-95.
  9. Lee MK, Lee WJ, Do YR, Lee KS, Jung KH, Heo DS, et al. Changes in health-related quality of life and quality of care among terminally ill cancer patients and survival prediction: multicenter prospective cohort study. Palliat Support Care 2015;13:1103-11. https://doi.org/10.1017/S1478951514000960
  10. Lee YH, Song JY. A study of the reliability and the validity of the BDI, SDS, and MMPI-D Scales. J Korean Psychology Assoc 1991;10:98-113.
  11. Jeong HR, Choi HJ, Park MS. The reliability and validity of Korean version of Wong and Law emotional intelligence scale (K-WLEIS). J Korean Acad Nurs 2020;50:611-20. https://doi.org/10.4040/jkan.20109
  12. Guilleumin F, Bombardier C, Beaton D. Cross-cultural adaptation of health-related quality of life measures: literature review and proposed guidelines. J Clin Epidemiol 993;46: 1417-32.
  13. Finch WH, Immekus JC, French BF. Applied psychometrics using SPSS and AMOS. Charlotte, NC:Information Age Publishing Inc.;2016.
  14. Yu JP. The concept and understanding of structural equation modeling. Seoul:Hannare Publishing Co.;2012. p. 160-370.
  15. Hair JF Jr, Black WC, Babin BJ, Anderson RE. Multivariate data analysis: a global perspective. 7th ed. Upper Saddle River, NJ:Prentice Hall;2010. p109-36.
  16. Nunnally JC, Bernstein IH. Psychometric theory. 3rd ed. New York:McGraw-Hill;c1994.
  17. Polit DF, Yang F. Measurement and the measurement of change a primer for the health professions. Philadelphia:Wolters Kluwer;2016.
  18. Whittemore R, Knafl K. The integrative review: updated methodology. J Adv Nurs 2005;52:546-53. https://doi.org/10.1111/j.1365-2648.2005.03621.x
  19. Sterkenburg CA, King B, Woodward CA. A reliability and validity study of the McMaster Quality of Life Scale (MQLS) for a palliative population. J Palliat Care 1996;12:18-25. https://doi.org/10.1177/082585979601200104
  20. Hwang IC, Keam B, Yun YH, Ahn HY, Kim YA. Quality of life changes and intensive care preferences in terminal cancer patients. Palliat Support Care 2015;13:1309-16. https://doi.org/10.1017/S147895151400131X
  21. Lee MK, Baek SK, Kim SY, Heo DS, Yun YH, Park SR, et al. Awareness of incurable cancer status and health-related quality of life among advanced cancer patients: a prospective cohort study. Palliat Med 2013;27:144-54. https://doi.org/10.1177/0269216311429042
  22. Kang J, Shin DW, Choi JY, Park CH, Baek YJ, Mo HN, et al. Addressing the religious and spiritual needs of dying patients by healthcare staff in Korea: patient perspectives in a multi-religious Asian country. Psychooncology 2012;21:374-81. https://doi.org/10.1002/pon.1901
  23. Lee YJ, Suh SY, Choi YS, Shim JY, Seo AR, Choi SE, et al. EORTC QLQ-C15-PAL quality of life score as a prognostic indicator of survival in patients with far advanced cancer. Support Care Cancer 2014;22:1941-8. https://doi.org/10.1007/s00520-014-2173-8
  24. Mo HN, Shin DW, Woo JH, Choi JY, Kang J, Baik YJ, et al. Is patient autonomy a critical determinant of quality of life in Korea? End-of-life decision making from the perspective of the patient. Palliat Med 2012;26:222-31. https://doi.org/10.1177/0269216311405089
  25. Kim KU, Yoon SJ, Lee JL, Ahn HS, Park HJ, Lee SI, et al. Validation of the Korean version of the McMaster Quality of Life Scale in terminal cancer patients. J Palliat Care 2006;22:40-5. https://doi.org/10.1177/082585970602200107
  26. Kim KU. Measurement of quality of life in patients with end-stage cancer. Cancer Nurs 2014;37:44-9. https://doi.org/10.1097/NCC.0b013e31827b5bdc
  27. Yun K. Development of quality of life measurement for patients with terminal illness [dissertation]. Seoul: Yonsei Univ.; 1998. Korean.
  28. Lee EH. Development and psychometric evaluation of a quality of life scale for Korean patients with cancer (C-QOL). J Korean Acad Nurs 2007;37:324-33. https://doi.org/10.4040/jkan.2007.37.3.324
  29. Kim SH, Kang S, Kim YM, Kim BG, Seong SJ, Cha SD, et al. Prevalence and predictors of anxiety and depression among cervical cancer survivors in Korea. Int J Gynecol Cancer 2010;20:1017-24. https://doi.org/10.1111/IGC.0b013e3181e4a704
  30. Kim KU. Quality of life using the Korean version of McMaster Quality of Life Scale in hospice and palliative care patients. J Hosp Palliat Care 2010;13:225-31. https://doi.org/10.14475/kjhpc.2010.13.4.225