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Reliability and validity of the Thai version of the Pediatric Quality of Life Inventory 4.0

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Abstract

Purpose

The study aimed to evaluate the reliability and validity of the Thai version of the Pediatric Quality of Life Inventory™ 4.0 Core Scales (PedsQL) as a measure of health-related quality of life (HRQOL).

Methods

The PedsQL items were completed by 2,086 pupils aged 8–15 years and 1,914 parents from four schools, and 100 pediatric outpatients and 100 parents from a University Hospital. Test–retest reliability was conducted in a randomly selected of 150 pupils at a 1-month interval.

Results

Internal consistency reliability for the Total Scale score (α = 0.84 self-report, 0.88 proxy-report), Physical Health Summary score (α = 0.76 self-report, 0.79 proxy-report), and Psychosocial Health Summary score (α = 0.74 self-report, 0.85 proxy-report) exceeded the minimum reliability standard of 0.70. School children had significantly higher mean HRQOL scores compared to those with chronic health conditions for all subscales with the mean differences of 3.1–12.4 for self-report (p < 0.03) and 7.7–15.6 for proxy-report (p < 0.001). Test–retest reliability showed intraclass correlation coefficients above 0.60 in all subscales (p < 0.001).

Conclusions

The Thai version of PedsQL had adequate reliability and validity and could be used as an outcome measure of HRQOL in Thai children aged 8–15 years.

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Abbreviations

HRQOL:

Health-related quality of life

PedsQL:

Pediatric Quality of Life Inventory™

MTMM:

Multitrait-multimethod

ICC:

Intraclass correlation coefficient

References

  1. Eiser, C. (2004). Use of quality of life measures in clinical trials. Ambulatory Pediatrics, 4, 395–399.

    Article  PubMed  Google Scholar 

  2. Testa, M. A., & Simonson, D. C. (1996). Assessment of quality-of-life outcomes. The New England Journal of Medicine, 334, 835–840.

    Article  PubMed  CAS  Google Scholar 

  3. Green, C., Brazier, J., & Deverill, M. (2000). Valuing health-related quality of life: A review of health state valuation techniques. Pharmacoeconomics, 17(2), 151–165.

    Article  PubMed  CAS  Google Scholar 

  4. Eiser, C. (1997). Children’s quality of life measures. Archive Disease of Childhood, 77, 350–354.

    Article  CAS  Google Scholar 

  5. Varni, J. W., Seid, M., & Kurtin, P. S. (2001). PedsQL 4.0: Reliability and validity of the Pediatric Quality of Life Inventory version 4.0 generic core scales in healthy and patient population. Medical Care, 39, 800–812.

    Article  PubMed  CAS  Google Scholar 

  6. Varni, J. W., Burwinkle, T. M., & Seid, M. (2006). The PedsQL™ as a school population health measure: Feasibility, reliability and validity. Quality of Life Research, 15, 203–215.

    Article  PubMed  Google Scholar 

  7. Pongwilairat, K., Louthrenoo, O., Charnsil, C., & Witoonchart, C. (2005). Quality of life with attention-deficit/hyperactivity disorder. Journal of Medical Association of Thailand, 88, 1062–1066.

    Google Scholar 

  8. Thavorncharoensap, M., Torcharus, K., Nuchprayoou, I., Riewpaiboon, A., Indaratna, K., & Ubol, B. (2010). Factors affecting health-related quality of life in Thai children with Thalassemia. BMC Blood Disorder, 10, 1.

    Article  Google Scholar 

  9. Surapolchai, P., Satayasai, W., Sinlapamongkolkul, P., & Udomsubpayakul, U. (2010). Biopsychosocial predictors of health-related quality of life in children with thalassemia in Thammasat University Hospital. Journal of Medical Association of Thailand, 93(Suppl 7), S65–S75.

    Google Scholar 

  10. Linguistic validation of the PedsQL™ -a Quality of Life Questionnaire Research and Evaluation, Limited Use translation of PedsQLl™ retrieved from the website: www.pedsql.org.

  11. McHorney, C. A., Ware, J. E., Lu, J. F., & Sherbourne, C. D. (1994). The MOS 36-item short-form health survey (SF-36): III psychometric and tests of data quality, scaling assumptions, and reliability across diverse patient groups. Medical Care, 32(1), 40–66.

    Article  PubMed  CAS  Google Scholar 

  12. McHorney, C. A., & Tarlow, A. R. (1995). Individual-patient monitoring in clinical practice: Are available health status surveys adequate? Quality of Life Research, 4, 293–307.

    Article  PubMed  CAS  Google Scholar 

  13. Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16, 297–334.

    Article  Google Scholar 

  14. Pedhazur, E. J., & Schmelkin, L. P. (1991). Measurement, design, and analysis: An integrated approach. Hillsdale, NJ: Erlbaum.

    Google Scholar 

  15. Nunnally, J. C., & Bernstein, I. R. (1994). Psychometric theory (3rd ed.). New York: Mc Graw-Hill.

    Google Scholar 

  16. McHorney, C. A., Ware, J. E., & Raczek, A. E. (1991). The MOS 36-item short-form health survey(SF-36): II psychometric and clinical tests of validity in measuring physical and mental health constructs. Medical Care, 31, 247–263.

    Article  Google Scholar 

  17. Cohen, J. (1988). Statstical power analysis for the behavioral sciences (2nd ed.). Hillsdale, NJ: Erlbaum.

    Google Scholar 

  18. Waltz, C., & Bausell, R. B. (1981). Nursing research: design, statistics, and computer analysis. Philadelphia: EA Davis.

    Google Scholar 

  19. Smith, K. W., Avis, N. E., & Assmann, S. F. (1999). Distinguishing between quality of life and health status in quality of life research: A meta analysis. Quality of Life Research, 8, 447–459.

    Article  PubMed  CAS  Google Scholar 

  20. McGraw, K., & Wong, S. (1996). Forming inferences about some intraclass correlation coefficients. Psychological Methods, 1(1), 30–46.

    Article  Google Scholar 

  21. Bartko, J. J. (1966). The intraclass correlation coefficient as a measure of reliability. Psychological Reports, 19, 3–11.

    Article  PubMed  CAS  Google Scholar 

  22. Gkoltsiou, K., Dimitrakaki, C., Tzavara, C., Papaevangelou, V., Varni, J. W., & Tountas, Y. (2008). Measuring health-related quality of life in Greek children: Psychometric properties of the greek version of the Pediatric Quality of Life Inventory(TM) 4.0 generic core scales. Quality of Life Research, 17, 299–305.

    Article  PubMed  Google Scholar 

  23. Reinfjell, T., Diseth, T. H., Veenstra, M., & Vikan, A. (2006). Measuring health-related quality of life in young adolescents: Reliability and validity in the Norwegian version of the Pediatric Quality of Life Inventory 4.0 (PedsQL) generic core scales. Health and Quality of Life Outcomes, 4, 61.

    Article  PubMed  Google Scholar 

  24. Hao, Y., Tian, Q., Lu, Y., Chai, Y., & Rao, S. (2010). Psychometric properties of the Chinese version of the Pediatric Quality of Life Inventory 4.0 generic core scales. Quality of Life Research, 19, 1229–1233.

    Article  PubMed  Google Scholar 

  25. Upton, P., Eiser, C., Cheung, I., Hutchings, H. A., Jenney, M., & Maddocks, A. (2005). Measurement properties of the UK-English version of the Pediatric Quality of Life Inventory™ 4.0 (PedsQL™) generic core scales. Health and Quality of Life Outcomes, 3, 22.

    Article  PubMed  Google Scholar 

  26. Chen, X., Origasa, H., lchida, F., Kamibeppu, K., & Varni, J. W. (2007). Reliability and validity the Pediatric Quality of Life Inventory (PedsQL) Short Form 15 generic core scales in Japan. Quality of Life Research, 16, 1239–1249.

    Article  PubMed  Google Scholar 

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Acknowledgment

The project was funded by the Faculty of Medicine, Thammasat University. We sincerely thank all the school personnel, the Thammasat University hospital staff, children and their caregivers who participated in the study. We are grateful to Dr. Bob Taylor and Dr. Tawanchai Jirapramukpitak for reviewing the manuscript.

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Authors and Affiliations

  1. Department of Pediatrics, Faculty of Medicine, Thammasat University, Klong-Loung, Pathum Thani, Thailand

    Paskorn Sritipsukho

  2. Department of Pharmacy, Payakphumisai Hospital, Mahasarakham, Thailand

    Matoorada Wisai

  3. Department of Pharmacy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand

    Montarat Thavorncharoensap

Authors
  1. Paskorn Sritipsukho
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  2. Matoorada Wisai
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  3. Montarat Thavorncharoensap
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Correspondence to Paskorn Sritipsukho.

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Sritipsukho, P., Wisai, M. & Thavorncharoensap, M. Reliability and validity of the Thai version of the Pediatric Quality of Life Inventory 4.0. Qual Life Res 22, 551–557 (2013). https://doi.org/10.1007/s11136-012-0190-y

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  • DOI: https://doi.org/10.1007/s11136-012-0190-y

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