French version of FACT-G: validation and comparison with other cancer-specific instruments

The aim of this study was to assess the validity of the French version of the Functional Assessment of Cancer Therapy – General (FACT-G), and to compare its psychometric properties with those of two other cancer-specific quality of life questionnaires, European Organisation for Research and Treatmen...

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Bibliographic Details
Published in:European journal of cancer (1990) 2004-10, Vol.40 (15), p.2243-2252
Main Authors: Conroy, T., Mercier, M., Bonneterre, J., Luporsi, E., Lefebvre, J.L., Lapeyre, M., Puyraveau, M., Schraub, S.
Format: Article
Language:English
Subjects:
Aged
Biological and medical sciences
Breast cancer
Colorectal cancer
EORTC QLQ-C30
FACT-G
Female
FLIC
France
Head and neck cancer
Humans
Male
Medical sciences
Middle Aged
Neoplasms - psychology
Observer Variation
Patient Satisfaction
Pharmacology. Drug treatments
Psychometrics
Quality of Life
Reproducibility of Results
Surveys and Questionnaires - standards
Tumors
Validation
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Summary:The aim of this study was to assess the validity of the French version of the Functional Assessment of Cancer Therapy – General (FACT-G), and to compare its psychometric properties with those of two other cancer-specific quality of life questionnaires, European Organisation for Research and Treatment of Cancer Quality of Life – Core 30 (EORTC QLQ-C30) and Functional Living Index – Cancer (FLIC). Two hundred and twenty three patients with breast or colorectal cancer completed the FACT-G questionnaire in French followed by (in random order) the QLQ-C30 and FLIC. An additional 87 patients with head and neck (H&N) cancer completed the FACT-H&N followed by the QLQ-C30 and H&N-Besançon. The French version of FACT-G was internally consistent, and its reproducibility was excellent. FACT-G Physical Well-Being and global scores correlated with all QLQ-C30 subscales. There was evidence of discriminant validity. Compared with the other tools, FACT-G included a statistically significantly higher proportion of items patients considered to be confusing or upsetting. Patients with breast or colorectal cancer expressed a preference for QLQ-C30. Use of the specific H&N additional items increased the responsiveness to change of FACT-G. The French version of FACT-G is valid and has psychometric properties similar to those of FLIC and QLQ-C30.
ISSN:0959-8049
1879-0852
DOI:10.1016/j.ejca.2004.06.010