Development of an EQ-5D Value Set for India Using an Extended Design (DEVINE) Study: The Indian 5-Level Version EQ-5D Value Set |
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Institution: | 1. Postgraduate Institute of Medical Education and Research, Chandigarh, India;2. Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India;3. Indian Institute of Public Health, Gandhinagar, India;4. All India Institute of Medical Sciences, Bhubaneswar, India;5. Department of Developmental Psychology, Faculty of Psychology, Universitas Padjadjaran, Indonesia;6. EuroQol Research Foundation, Rotterdam, The Netherlands;7. Indian Council of Medical Research, Department of Health Research, Ministry of Health and Family Welfare, Government of India, New Delhi, India;8. Academy of Management Studies, Lucknow, India |
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Abstract: | ObjectivesThis study aimed to develop the Indian 5-level version EQ-5D (EQ-5D-5L) value set, which is a key input in health technology assessment for resource allocation in healthcare.MethodsA cross-sectional survey using the EuroQol Group’s Valuation Technology was undertaken in a representative sample of 3548 adult respondents, selected from 5 different states of India using a multistage stratified random sampling technique. The participants were interviewed using a computer-assisted personal interviewing technique. This study adopted a novel extended EuroQol Group’s Valuation Technology design that included 18 blocks of 10 composite time trade-off (c-TTO) tasks, comprising 150 unique health states, and 36 blocks of 7 discrete choice experiment (DCE) tasks, comprising 252 DCE pairs. Different models were explored for their predictive performance. Hybrid modeling approach using both c-TTO and DCE data was used to estimate the value set.ResultsA total of 2409 interviews were included in the analysis. The hybrid heteroscedastic model with censoring at ?1 combining c-TTO and DCE data yielded the most consistent results and was used for the generation of the value set. The predicted values for all 3125 health states ranged from ?0.923 to 1. The preference values were most affected by the pain/discomfort dimension.ConclusionsThis is the largest EQ-5D-5L valuation study conducted so far in the world. The Indian EQ-5D-5L value set will promote the effective conduct of health technology assessment studies in India, thereby generating credible evidence for efficient resource use in healthcare. |
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Keywords: | EQ-5D health technology assessment health-related quality of life India population norms quality of life utility scores utility values utility weights value set |
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