- Years lived with disability (YLDs) are a measurement of the burden of disease.
- YLDs are calculated by multiplying the prevalence of a disorder by the short- or long-term loss of health associated with that disability (the disability weight).
- When YLDs are added to the number of years of life lost for a certain disease or disorder, the burden of disability associated with a disease or disorder can be reported in units called disability-adjusted life years (DALYs).
US Burden of Disease Collaborators. The state of US health, 1990-2010: burden of diseases, injuries, and risk factors. JAMA, 310(6): 591-608, 2013.