DALYs are calculated by taking the sum of these two components::formula_1The DALY relies on an acceptance that the most appropriate measure of the effects of chronic illness is time, both time lost due to premature death and time spent disabled by disease.
Psihična in nevrološka obolenja predstavljajo 28 % vseh v invalidnosti preživetih let, vendar pa pomenijo samo 1,4 % vseh smrti in 1,1 % izgubljenih let življenja.