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Conceptual equivalence and health-related quality of life: an exploratory study in Japanese and Dutch cancer patients
- Source :
- Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation. 15(6)
- Publication Year :
- 2006
-
Abstract
- Research into the equivalence of Western and Japanese conceptualizations of health-related quality of life (HR-QOL) is scarce. We used the Western (European Organization for Research and Treatment of Cancer, EORTC-QLQ-C30) and the Japanese (HRQoL-20) questionnaire in order to analyze the conceptual similarity of HR-QOL factors, and the associations between specific symptom items with overall HR-QOL in Japanese (n = 265) and Dutch (n = 174) patients with various types of cancer. Both populations completed both instruments. In both patient groups, the overall health scale of the EORTC-QLQ-C30 correlated highly (r = 0.59; p < 0.001) with the HRQOL-20 composite average score, indicating substantial conceptual comparability. Relationships between all EORTC-QLQ-C30 symptom items with HR-QOL were examined by ranking their correlations with the two overall measures of HR-QOL. Comparable patterns in the Japanese and Dutch samples were observed. The results suggest a considerable conceptual equivalence of HR-QOL in Japanese and Dutch cancer patients, and indicate a satisfactory structural and cross-cultural equivalence for the EORTC-QLQ-C30 with regard to items measuring functioning and specific symptoms. Longitudinal studies are needed to examine the impact of specific symptoms on general quality of life.
- Subjects :
- Cross-Cultural Comparison
Male
medicine.medical_specialty
Psychometrics
Culture
Exploratory research
Pilot Projects
Japan
Neoplasms
Oncology Service, Hospital
Sickness Impact Profile
Surveys and Questionnaires
medicine
Humans
Equivalence (measure theory)
Quality of Life Research
Netherlands
Health related quality of life
business.industry
Public health
Eortc qlq c30
Comparability
Public Health, Environmental and Occupational Health
social sciences
humanities
Quality of Life
Female
business
Social psychology
Attitude to Health
Clinical psychology
Subjects
Details
- ISSN :
- 09629343
- Volume :
- 15
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
- Accession number :
- edsair.doi.dedup.....4cccaa584a8b7217e4463b0663eee877