Which statement accurately distinguishes DALYs from QALYs?

• A. DALYs measure years of life adjusted by quality of life.
• B. DALYs measure years of healthy life lost due to disability or premature death; QALYs measure years of life adjusted by quality of life for health interventions.
• C. DALYs and QALYs assess same concept.
• D. DALYs are used for economic cost, QALYs for environmental impact.

Answer: (B)