What do DALYs measure?

What do DALYs measure?

• A. Cost per life-year gained
• B. Years of healthy life lost due to disease or injury
• C. Number of hospital days per case
• D. Incidence rate per 100,000

Answer: (B)

DALYs measure the burden of disease in terms of healthy years lost. They combine two ideas: years of life lost due to premature death and years lived with disability due to illness or injury. YLL accounts for deaths occurring earlier than expected, while YLD accounts for nonfatal health problems weighted by their severity. Adding these together gives the total DALYs, reflecting both mortality and morbidity in a population. This differs from metrics like cost per life-year gained, hospital days, or incidence rates, which focus on costs, healthcare utilization, or disease frequency rather than overall healthy life years lost.

DALYs measure the burden of disease in terms of healthy years lost. They combine two ideas: years of life lost due to premature death and years lived with disability due to illness or injury. YLL accounts for deaths occurring earlier than expected, while YLD accounts for nonfatal health problems weighted by their severity. Adding these together gives the total DALYs, reflecting both mortality and morbidity in a population. This differs from metrics like cost per life-year gained, hospital days, or incidence rates, which focus on costs, healthcare utilization, or disease frequency rather than overall healthy life years lost.