Abstract
The survival rate of cervical cancer is increasing due to early diagnosis and timely treatment. As a result, the availability of a valid and reliable general HRQoL is important. The purpose of this study was to evaluate the psychometric properties of the EuroQol questionnaire (EQ-5D) in patients with cervical cancer in Taiwan. Outpatients with cervical cancer were recruited from three medical centers across Taiwan. Test-retest reliability and ceiling effect were evaluated. Construct validity including convergent and discriminate validities were examined using the EORTC QLQ C-30 (European Organization for Research and Treatment of Cancer Quality of Life Questionnaire) and the clinical indicators of the functional performance assessment using the Karnofsky Performance Scale (KPS) and disease status. A total of 530 patients completed the questionnaire. The intraclass correlation coefficient for the EQ-5D index was 0.83, and the Cohen's kappa values for the EQ-5D dimensions ranged from 0.54 to 0.73. The EQ-5D index and VAS scores were higher for patients with a higher KPS score and disease-free status. The EQ-5D index was strongly correlated with all EORTC QLQ-C30 functioning scales. The EQ-5D questionnaire is reliable and valid for the assessment of health-related quality of life in patients with cervical cancer in Taiwan.
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