What are YLDs?

  • 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).

Vos T et al. Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990-2010: a systematic analysis for the Global Burden of Disease Study 2010. Lancet, 380(9859): 2163-96, 2012.