Quality of Life Research

, Volume 13, Issue 4, pp 863–868 | Cite as

Validation of the Korean version of the EORTC QLQ-C30

  • Y.H. Yun
  • Y.S. Park
  • E.S. Lee
  • S.-M. Bang
  • D.S. Heo
  • S.Y. Park
  • C.H. You
  • K. West


This study evaluated the Korean version of the EORTC QLQ-C30 (version 3.0) in terms of psychometric properties and its validation. One hundred and seventy patients completed three questionnaires EORTC QLQ-C30, the Beck depression inventory (BDI), and a brief pain inventory (BPI). Multitrait scaling analyses demonstrated that all scales met multidimensional conceptualization criteria, in terms of convergence and discrimination validity. Cronbach's α coefficients for eight multiple-item scales were greater than 0.70, with the exception of cognitive functioning. All interscale correlations were statistically significant in the expected direction (p < 0.01). Multivariate analyses showed that physical and emotional functioning were significant explanatory variables for the global quality-of-life (QOL) scale (regression coefficients: 0.36, p < 0.001; and 0.37, p < 0.001; respectively). All scales were significantly associated with pain severity and interference of the BPI, and with the cognitive-affective and somatic scales of the BDI. The emotional-functioning scale was substantially correlated with the cognitive-affective scale and somatic scale of the BDI. These results demonstrate that the Korean version of the EORTC QLQ-C30 is a valid instrument for evaluating Korean-speaking patients with cancer, and can be used to distinguish clearly between subgroups of patients of differing performance status.

BDI BPI EORTC QLQ-C30 Korea Validation study 


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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Y.H. Yun
    • 1
  • Y.S. Park
    • 1
  • E.S. Lee
    • 1
  • S.-M. Bang
    • 2
  • D.S. Heo
    • 3
  • S.Y. Park
    • 1
  • C.H. You
    • 1
  • K. West
    • 4
  1. 1.Research Institute and HospitalNational Cancer CenterGoyangKorea
  2. 2.Department of Internal MedicineGachon Medical SchoolIncheonKorea
  3. 3.Department of Internal MedicineSeoul National University HospitalSeoulKorea
  4. 4.EORTC Quality of Life UnitBrusselsBelgium

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