Instead it s usually done by advocates with an agenda, and policy may not cover the most pressing health issues. For each health problem, this is the sum of years lost to it from mortality and disability. In developing countries, communicable disease causes 4 in 10 deaths, compared to 1 in 16 in developed world, where noncommunicable disease casues the vast majority of deaths. Page 741 lists the major leading causes of DALYs. The list interestingly includes emotional illness.
Diarrheal disease is on the wane.