This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Years of life lost due to premature death and years lived with disability is known as 
Select and explain. 
A. HALE, B. DALY, C. Sullivan's index, D. HDI
B: DALY
Answer: B: DALY 
Explanation: DALY Number of years lost due to ill-health, disability or early death 1 DALY = 1yr of healthy life lost Ref : Park&;s Textbook of Preventive and Social Medicine; 23rd edition - Pgno. 26