Journal of Preventive Medicine and Public Health

The Korean Society for Preventive Medicine (대한예방의학회)
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DALY Estimation Approaches: Understanding and Using the Incidence-based Approach and the Prevalence-based Approach

  • Kim, Young-Eun (Department of Big Data Strategy, National Health Insurance Service) ;
  • Jung, Yoon-Sun (Institute for Future Public Health, Graduate School of Public Health, Korea University) ;
  • Ock, Minsu (Department of Preventive Medicine, University of Ulsan College of Medicine) ;
  • Yoon, Seok-Jun (Department of Preventive Medicine, Korea University College of Medicine)
  • Received : 2021.11.10
  • Accepted : 2022.01.12
  • Published : 2022.02.03
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Abstract

Disability-adjusted life-year (DALY) estimates may vary according to factors such as the standard life expectancy, age weighting, time preference and discount rate, calculation of disability weights, and selection of the estimation method. DALY estimation methods are divided into the following 3 approaches: the incidence-based approach, the pure prevalence-based approach, and the hybrid approach. These 3 DALY estimation approaches each reflect different perspectives on the burden of disease using unique characteristics, based on which the selection of a suitable approach may vary by the purpose of the study. The Global Burden of Disease studies, which previously estimated DALYs using the incidence-based approach, switched to using the hybrid approach in 2010, while the National Burden of Disease studies in Korea still mainly apply the incidence-based approach. In order to increase comparability with other international burden of disease studies, more DALY studies using the prevalence-based approach need to be conducted in Korea. However, with the limitations of the hybrid approach in mind, it is necessary to conduct more research using a disease classification system suitable for Korea. Furthermore, more detailed and valid data sources should be established before conducting studies using a broader variety of DALY estimation approaches. This review study will help researchers on burden of disease use an appropriate DALY estimation approach and will contribute to enhancing researchers' ability to critically interpret burden of disease studies.

Keywords

Acknowledgement

The funding agency had no role in the study design, analysis and interpretation of the data, or the preparation of the manu script.

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