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Cross-cultural application of the Korean version of the European Organization for Research and Treatment of Cancer (EORTC) Breast-Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23)

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Abstract

The aim of this study was to evaluate the psychometric properties of the Korean version of the European Organization for Research and Treatment of Cancer Breast-Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23). A total of 153 patients with breast cancer and 153 normal subjects completed three questionnaires of the Korean version of the EORTC QLQ-BR23. Multitrait scaling analyses demonstrated that all scales met multidimensional conceptualization criteria in terms of convergence and discrimination validity. Cronbach’s alpha coefficients for five multiple-item scales were greater than 0.70 (range, 0.72–0.91). In known-group comparisons, there were marked group differences between patients differing in disease stage. In breast cancer patients, performance on the questionnaires was in the expected direction for almost all functioning and symptom scores. In addition, comparison between the patient and control groups showed that almost all variables discriminated between patients and normal individuals. In conclusion, the Korean version of the EORTC QLQ-BR23 was found to be a reliable and valid measure of quality of life in breast cancer patients, indicating that it should be used in clinical and epidemiological cancer research.

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Acknowledgements

This work was supported by a National Cancer Center Grant (0110030–3). We thank the EORTC Study Group on Quality of Life for their permission to translate the EORTC QLQ-BR23. We are especially grateful for the help received from Ms. Karen West of the EORTC Quality of Life Unit.

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  1. Young Suk Park

    Present address: Division of Hematology/Oncology, Samsung Medical Center, Seoul, Korea

Authors and Affiliations

  1. Research Institute and Hospital, National Cancer Center, 809 Madu-dong, 411–769, Goyang, Gyeonggi, Korea

    Young Ho Yun, Sung Heui Bae, Im Ok Kang, Kyung Hwan Shin, Ran Lee, So Im Kwon, Young Suk Park & Eun Sook Lee

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  1. Young Ho Yun
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  2. Sung Heui Bae
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  3. Im Ok Kang
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Correspondence to Eun Sook Lee.

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Yun, Y.H., Bae, S.H., Kang, I.O. et al. Cross-cultural application of the Korean version of the European Organization for Research and Treatment of Cancer (EORTC) Breast-Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23). Support Care Cancer 12, 441–445 (2004). https://doi.org/10.1007/s00520-004-0632-3

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  • DOI: https://doi.org/10.1007/s00520-004-0632-3

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