 Quality-adjusted life year

A Quality-Adjusted Life Year (QALY) is a measure used in health economics to assess the value of medical interventions or health outcomes. It combines both the quantity and quality of life into a single metric, allowing for comparison across different health conditions and treatments. The QALY is calculated by taking the number of years lived and adjusting it based on the quality of those years lived, which is typically measured on a scale from 0 to 1.