Health-Related Quality of Life (HRQoL) Using EQ-5D-5L: Value Set Derived for Indian Breast Cancer Cohort |
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| Authors: | Tabassum WadasadawalaSanjay K MohantySoumendu SenPijush Kanti KhanSharmila PimpleJaykumar V. ManeRajiv SarinSudeep GuptaVani Parmar |
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| Affiliation: | 1Advanced Center for Treatment Research and Education in Cancer, Tata Memorial Center, Mumbai, Homi Bhabha National Institute, India.2International Institute for Population Sciences, Mumbai, India.3International Institute of Health Management Research, New Delhi, India.4Tata Memorial Center, Homi Bhabha National Institute, Mumbai, India. |
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| Abstract: | Objective: The purpose of this study was to report quality of life of newly diagnosed breast cancer patients from India in a large cohort using the EQ-5D-5L instrument. Methods: The study used longitudinal data of 500 breast cancer and 200 non-cancer subjects registered at our centre, during June 2019 and March 2022. The EQ-5D-5L and EQ-VAS instruments were used to measure and compare utility scores among cancer and non-cancer subjects. Descriptive statistics were analyzed and Tobit regression model were used to confirm the predictors of the utility score. Results: The cancer subjects had a mean EQ-ED-5L utility score of 0.8703 (SD=0.121), 0.8745 (SD=0.094) and 0.8902 (SD=0.107) at the time of baseline, completion and follow up surveys respectively. EQ-5D-5L values had significantly worsened after diagnosis of cancer as compared to the non-cancer cohort (0.87 vs. 0.93, p value 0.000). EQ-5D-5L utility scores as per stage for the cancer cohort were 0.88, 0.86 and 0.83 respectively for stage I-II, III and IV. Similarly, the EQ-VAS scores for stage I-II, III and IV were 74.9, 72.6 and 73.2 respectively. Multivariate analysis confirmed strong association of age, religion and income with the utility-values. Conclusion: This is the first longitudinal study reporting the utility scores derived from a large cohort of breast cancer patients demonstrating lower utility scores compared to non-cancer cohort. The utility scores also improve post treatment completion for cancer patients and decrease with higher stage at diagnosis. This information will be useful for future health economic research in India pertaining to breast cancer. |
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| Keywords: | EQ-5D-5L Quality of Life Health State Utility breast cancer India |
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