Abstract
Background and Objective
Utility provides a preference for specific health state in economic evaluation, and they obtained from general population could be useful in respect of societal resource allocation. We aimed to investigate the utilities of health states for heart failure (HF), a major and growing public health problem, related to hospitalization and adverse drug effects by interrogating the general Korean population.
Methods
Five health states for patients with HF were developed based on literature reviews: stable chronic heart failure (SCHF), hospitalization, SCHF + cough, SCHF + hypotension, and SCHF + hyperkalemia. We selected 100 individuals from the general population through quota sampling by age, sex, and region, and conducted face-to-face interviews. We measured utilities for 5 hypothetical health states of HF using both time trade-off (TTO) and EuroQol-5 dimensions-5 levels (EQ-5D-5L). Repeated-measures analysis of variance compared the utilities between all health states for each instrument. To identify the factors affecting the utility, a linear mixed model (LMM) analysis was performed.
Results
The mean utility value for SCHF, SCHF + cough, SCHF + hypotension, SCHF + hyperkalemia, and hospitalization was calculated as 0.815, 0.732, 0.646, 0.548, and 0.360, respectively, by using TTO. The respective values using EQ-5D-5L were 0.871, 0.793, 0.710, 0.589, and 0.215. The utilities for HF significantly differed between all health states in each instrument (p < 0.001). In LMM analysis, hospitalization had a significantly negative effect on the utilities of both instruments.
Conclusions
The utilities decreased in order of SCHF, SCHF + cough, SCHF + hypotension, SCHF + hyperkalemia, and hospitalization. These results can be useful for decision making in resource allocation for HF interventions.
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Funding
This study was funded by Novartis Korea Ltd. The sponsor did not engage in study design; in the collection, analysis and interpretation of data; in the writing of the manuscript; and in the decision to submit the article for publication.
Conflict of interest
Sung-Hyun Hong, Jae-Yeon Lee, Sun-Kyeong Park, Jin Hyun Nam, Hyun Jin Song, Sun-Young Park, and Eui-Kyung Lee declare that they have no conflict of interest.
Ethical approval
This study was approved by the Institutional Review Board of Sungkyunkwan University (approval number: 2015-12-004-001). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Hong, SH., Lee, JY., Park, SK. et al. The Utility of 5 Hypothetical Health States in Heart Failure Using Time Trade-Off (TTO) and EQ-5D-5L in Korea. Clin Drug Investig 38, 727–736 (2018). https://doi.org/10.1007/s40261-018-0659-8
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DOI: https://doi.org/10.1007/s40261-018-0659-8