Quick-FLIC: validation of a short questionnaire for assessing quality of life of cancer patients |
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Authors: | Cheung Y-B Goh C Wong L-C Ng G-Y Lim W-T Leong S-S Tan E-H Khoo K-S |
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Affiliation: | Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre, 11 Hospital Drive, Singapore 169610. ctecyb@nccs.com.sg |
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Abstract: | A practically useful measure of quality of life should be simple and quick to complete. A shortened Chinese version of the Functional Living Index - Cancer (FLIC) was recently proposed and was called Quick-FLIC. This study aims to assess the measurement properties of the Quick-FLIC. A total of 190 patients who received care from the National Cancer Centre of Singapore completed a questionnaire package at baseline. Patients filled in a retest questionnaire on average 2 weeks after baseline to assess test-retest reliability and responsiveness to change. The Quick-FLIC scores correlated well with the Functional Assessment of Chronic Therapy - General scores (r=0.78). Patients with different treatment status, performance status and self-rated health had significantly different Quick-FLIC scores in the expected directions (ANOVA; each P<0.001). Internal consistency (Cronbach's alpha=0.87) and 2-week test-retest reliability (intraclass correlation=0.81) were also satisfactory. The measure was responsive to changes in health status (P<0.001). The Quick-FLIC is a valid and reliable measure of health-related quality of life of cancer patients. The shortening of established health-related quality of life instruments should be considered in order to reduce the burden of having patients to answer lengthy questionnaires. |
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Keywords: | quality of life shortening |
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