Disability Adjusted Life Year (DALY), used to quantify the burden of disease, is calculated as:

• A Years of Life Lost minus Years Lived with Disability
• B Years of Life Lost plus Years Lived with Disability ✓
• C Years of Life Lost multiplied by Years Lived with Disability
• D Crude death rate plus incidence rate

Explanation

One DALY represents one lost healthy year and is the sum of Years of Life Lost due to premature mortality and Years Lived with Disability adjusted for severity weights. This combination allows mortality and morbidity burdens to be expressed in a single comparable unit. Subtracting or multiplying the components has no meaning, and crude death rate with incidence rate mixes unrelated population-level measures that cannot capture disability at all.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.