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	Rok życia skorygowany o jakość (QALY)	Rok Życia Skorygowany o Niepełnosprawność (DALY)
Dziedzina	Ekonomika zdrowia	Ekonomika zdrowia
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1985	1990
Twórca	Alan Williams (Health Economics Research Centre, Oxford University)	Christopher J. L. Murray and Alan D. Lopez (World Health Organization / World Bank)
Typ	Method	Method
Źródło pierwotne	Kind, P. (1989). The EuroQol instrument: an index of health-related quality of life. In B. Teeling Smith (Ed.), Measuring health: a practical approach. Chichester: Wiley.	Murray, C. J., Lopez, A. D., & Jamison, D. T. (1994). The Global Burden of Disease in 1990: Summary Results, Sensitivity Analysis, and Future Directions. In C. J. Murray & A. D. Lopez (Eds.), Global Burden of Disease and Injury. Cambridge: Harvard University Press.
Inne nazwy	QALY, health utility measure	DALY, global disease burden metric, burden of disease
Pokrewne	5	5
Podsumowanie	A QALY measures health benefit as utility weight (0 = death, 1 = perfect health) multiplied by time lived. Developed by Alan Williams in 1985, QALYs enable comparison of disparate health interventions on a common metric. Used globally by health technology assessment bodies—NICE (UK), HAS (France), CADTH (Canada), WHO—to decide which treatments deserve public funding.	A DALY quantifies disease burden as the sum of years of life lost to premature death and years lived with disability. Developed by the World Health Organization and World Bank in 1990 as part of the Global Burden of Disease (GBD) study, DALYs enable epidemiologists and public health planners to compare disease burden across populations, identify health priorities, and evaluate intervention impact. One DALY = one lost year of 'healthy' life; DALYs averted measure progress toward health goals.