<prompt> Which of the following is the MOST useful index for the measure of the burden of disease in a defined population?Parks indexDisability adjusted life yearsMorbidity propoionCase fatality rate  <response>: Disability adjusted life years DALY is a measure of the burden of disease in a defined population and the effectiveness of the intervention. Case fatality rate indicates killing power of a disease. REMEMBER: Sullivans index is the most advanced indicator available for disability Ref: Parks textbook of Preventive and Social Medicine, 21st edition, page-26 