Reliability and validity of the Functional Assessment of Cancer Therapy General (FACT-G) in French cancer patients

Springer Science and Business Media LLC - Tập 14 - Trang 1427-1432 - 2005
Nathalie Costet1,2, Valérie Lapierre3, Ellen Benhamou3, Catherine Le Galès1
1INSERM U537 – Center for Health Economics and Administration Research, Le Kremlin Bicetre, France
2ENSAI, Bruz, France
3Gustave Roussy Cancer Institute, Villejuif, France

Tóm tắt

This report describes the reliability and validity of a French version of the Functional Assessment of Cancer Therapy – General (FACT-G) with a French sample of 493 cancer patients. The FACT-G consists of 27 items and four subscales: Physical (PWB), Functional (FWB), Social/Family (SFWB) and Emotional well-being (EWB). The study sample includes 64% with localized disease, 26% with metastases, 11% in remission, and 71% receiving radiation/chemotherapy. Internal consistency Cronbach alphas of the global FACT-G scale (0.90) and subscales (>0.75) are satisfactory (n =126). Test-retest reproducibility is satisfactory for all subscales and the global scale (n =87 to 93, r=0.74 to 0.90). ANOVA models show that PWB differentiated between the three disease stages; the global FACT-G and FWB discriminated between patients with metastases and others with localized disease or in remission; EWB only discriminated between metastases and localized disease; while SFWB did not discriminate between groups at different stages of cancer. Only the PWB subscale discriminated between patients with no history from those receiving chemotherapy (p ≤ 0.05). None of the scales discriminated between groups based on radiotherapy. These results may be useful in the design and interpretation of clinical trials involving French patients when the FACT-G is the outcome measure.

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