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Gepubliceerd in: Quality of Life Research 2/2008

01-03-2008 | Brief Communcation

Validation of the Japanese version of EORTC QLQ-CR38

Auteurs: A. Tsunoda, N. Yasuda, K. Nakao, N. Yokoyama, T. Marumori, H. Hashimoto, M. Kusano, K. West

Gepubliceerd in: Quality of Life Research | Uitgave 2/2008

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Abstract

Purpose

The objective of this study was to test the reliability and validity of the Japanese version of the European Organization for Research and Treatment of Cancer (EORTC) Colorectal Cancer-Specific Quality of Life Questionnaire (QLQ-CR38).

Methods

The questionnaire was tested among 109 colorectal cancer patients on several occasions. The timing was prior to treatment with radiotherapy or chemotherapy, during treatment and 3 months following the second assessment. For purpose of test–retest reliability, a subgroup of patients completed the QLQ-CR38 1 week following the third assessment.

Results

Multitrait scaling analysis confirmed the hypothesised scale structure of both the function scales and the symptom scales except female sexual problem scale. Cronbach’s alpha coefficients for seven of the nine scales exceeded the 0.7 criterion at one or both assessments. The test–retest reliability for all scales except three symptom scales was 0.67 or higher. On the basis of known-groups comparisons, four of 46 comparisons distinguished between patients differing in disease stage, initial and on-treatment performance status and presence or absence of a stoma. Additionally, these scales detected change over time as a function of change in performance status and treatment-induced change.

Conclusion

These preliminary results suggest that the Japanese EORTC QLQ-CR38 may be a reliable and valid supplementary measure of quality of life in colorectal cancer patients.
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Metagegevens
Titel
Validation of the Japanese version of EORTC QLQ-CR38
Auteurs
A. Tsunoda
N. Yasuda
K. Nakao
N. Yokoyama
T. Marumori
H. Hashimoto
M. Kusano
K. West
Publicatiedatum
01-03-2008
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 2/2008
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-007-9298-x