This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Indicators of Health, Subject name: Social & Preventive Medicine
[{'content': 'Which is the best index for burden of disease and effectiveness of interventions? \nSelect and explain. \nA. Case fatality rate, B. Disability adjusted life years, C. Dependency ratio, D. Morbidity data', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) Disability adjusted life years* Disability adjusted life years : Is a measure of the burden of disease in a defined population and the effectiveness of interventions; It expresses years lost to premature death and years lived with disability adjusted for its' severityALSO REMEMBER* DALYs can measure 'both mortality and disability together'* Case fatality rate measures 'virulence of an organism' or 'killing power of a disease'* Dependency ratio measures the 'need for society to provide for its' younger and older groups'* Morbidity data measures 'any departure from health'", 'role': 'assistant'}]