The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30): Validation of English Version in Singapore

Objective: This study aimed to validate the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30, English version 3.0) in Singaporean cancer patients. Methods: In a cross-sectional study, a heterogeneous sample of cancer patients (n = 57) self-admin... Ausführliche Beschreibung

1. Person: Luo, N.
Quelle: in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation : official journal of the International Society for Quality of Life Research Vol. 14, No. 4 (2005), p. 1181-1186
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Format: Online-Artikel
Sprache: English
Veröffentlicht: 2005
Beschreibung: Online-Ressource
Schlagworte: research-article
Cancer
EORTC QLQ-C30
Quality of life
Singapore
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Anmerkung: Copyright: Copyright 2005 Springer
Zusammenfassung: Objective: This study aimed to validate the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30, English version 3.0) in Singaporean cancer patients. Methods: In a cross-sectional study, a heterogeneous sample of cancer patients (n = 57) self-administered a questionnaire containing the QLQ-C30, the Short Form 36 Health Survey (SF-36) and assessing health and sociodemographic status. Construct validity was assessed by testing a priori hypotheses that QLQ-C30 scales would be moderately or strongly correlated with SF-36 scales measuring similar dimensions of health-related quality of life (HRQoL) and that subjects reporting mild symptoms would have better HRQoL scores than those reporting severe symptoms. Internal consistency reliability was assessed using Cronbach's α. Results: Strength of Spearman's correlations between the QLQ-C30 and SF-36 scales assessing similar dimensions of HRQoL ranged from 0.35 to 0.67. Subjects with mild symptoms had better scores than those with severe symptoms for all six QLQ-C30 HRQoL scales (p < 0.05 for five scales, Mann-Whitney U tests). Cronbach's α ranged from 0.19 for the cognitive functioning scale to 0.91 for the global QoL scale. Conclusion: This study provides preliminary evidence for the validity and reliability of the EORTC QLQ-C30 in English-speaking Singaporean cancer patients.
ISSN: 1573-2649

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