• Fredrick Dermawan Purba, HunfeldJoke A MJAMSection Medical Psychology and Psychotherapy, Department of Psychiatry, Erasmus MC University Medical Center, Wytemaweg 80, Room Na-2019, 3015 CN, Rotterdam, The Netherlands., Aulia Iskandarsyah, Titi Sahidah Fitriana, Sawitri Supardi Sadarjoen, Juan Manuel Ramos-Goñi, Jan Passchier, and BusschbachJan J VJJVSection Medical Psychology and Psychotherapy, Department of Psychiatry, Erasmus MC University Medical Center, Wytemaweg 80, Room Na-2019, 3015 CN, Rotterdam, The Netherlands..
• Section Medical Psychology and Psychotherapy, Department of Psychiatry, Erasmus MC University Medical Center, Wytemaweg 80, Room Na-2019, 3015 CN, Rotterdam, The Netherlands. f.purba@erasmusmc.nl.
• Pharmacoeconomics. 2017 Nov 1; 35 (11): 1153-1165.

BackgroundThe EQ-5D is one of the most used generic health-related quality-of-life (HRQOL) instruments worldwide. To make the EQ-5D suitable for use in economic evaluations, a societal-based value set is needed. Indonesia does not have such a value set.ObjectiveThe aim of this study was to derive an EQ-5D-5L value set from the Indonesian general population.MethodsA representative sample aged 17 years and over was recruited from the Indonesian general population. A multi-stage stratified quota method with respect to residence, gender, age, level of education, religion and ethnicity was utilized. Two elicitation techniques, the composite time trade-off (C-TTO) and discrete choice experiments (DCE) were applied. Interviews were undertaken by trained interviewers using computer-assisted face-to-face interviews with the EuroQol Valuation Technology (EQ-VT) platform. To estimate the value set, a hybrid regression model combining C-TTO and DCE data was used.ResultsA total of 1054 respondents who completed the interview formed the sample for the analysis. Their characteristics were similar to those of the Indonesian population. Most self-reported health problems were observed in the pain/discomfort dimension (39.66%) and least in the self-care dimension (1.89%). In the value set, the maximum value was 1.000 for full health (health state '11111') followed by the health state '11112' with value 0.921. The minimum value was -0.865 for the worst state ('55555'). Preference values were most affected by mobility and least by pain/discomfort.ConclusionsWe now have a representative EQ-5D-5L value set for Indonesia. We expect our results will promote and facilitate health economic evaluations and HRQOL research in Indonesia.

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