Quality adjusted life year
From the Health Economics Glossary
The quality adjusted life year (QALY)1,2 is a unit commonly used to measure health gain (or health effects), where the duration of the survival is adjusted by the patients Quality of life (QOL). This is done by multiplying the duration of survival with a utility weight that represents the quality of life of the health state experienced during that time.
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References
1 Kaplan R. The Minimally Clinically Important Difference in Generic Utility-Based Measures. COPD: Journal of Chronic Obstructive Pulmonary Disease, 2:91–97
2 Sassi F. How to do (or not to do)Calculating QALYs, comparing QALY and DALY calculations Health Policy Plann. 2006 21:5 (402-408)
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