HOW TO UNDERSTAND THEM
Quality-adjusted life years
Centre for Health Economics, University of York, York, UK
Correspondence to:
Professor M Sculpher, Centre for Health Economics University of York, Heslington, York YO10 5DD, UK; mjs23{at}york.ac.uk
Many health systems now use cost-effectiveness analysis to decide which interventions and programmes to fund. A key issue for such decision making is how to measure health outcomes from interventions to reflect changes in both health-related quality of life and life expectancy. For some decision makers, including the National Institute for Health and Clinical Excellence in the UK, the quality-adjusted life-year (QALY) is central to health measurement. This article describes the concept of the QALY, its derivation, and its strengths and weaknesses. ...[End of Extract]
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