![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/All_Causes_world_map_-_DALY_-_WHO2004.svg/640px-All_Causes_world_map_-_DALY_-_WHO2004.svg.png&w=640&q=50)
Disability-adjusted life year
Measure of disease burden / From Wikipedia, the free encyclopedia
Disability-adjusted life years (DALYs) are a measure of overall disease burden, expressed as the number of years lost due to ill-health, disability, or early death. It was developed in the 1990s as a way of comparing the overall health and life expectancy of different countries.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/All_Causes_world_map_-_DALY_-_WHO2004.svg/640px-All_Causes_world_map_-_DALY_-_WHO2004.svg.png)
No data
Fewer than 9,250
9,250–16,000
16,000–22,750
22,750–29,500
29,500–36,250
36,250–43,000
43,000–49,750
49,750–56,500
56,500–63,250
63,250–70,000
70,000–80,000
More than 80,000
DALYs have become more common in the field of public health and health impact assessment (HIA). They include not only the potential years of life lost due to premature death but also equivalent years of 'healthy' life lost by virtue of being in states of poor health or disability. In so doing, mortality and morbidity are combined into a single, common metric.[2]