Use this summary health measure when deaths, cases, disability weights, durations, and reference life expectancies come from a compatible burden-of-disease framework.

Deaths

Deaths in each age group or cause class.

LE at death

Standard life expectancy in years at death, aligned with the death counts.

YLL

Total years of life lost.

Results depend strongly on case definitions, disability weights, duration assumptions, and the standard life table. Do not mix discounted, age-weighted, incidence-based, and prevalence-based inputs without documenting the convention.

Report mortality and disability components separately alongside the combined summary measure. Case counts, crude rates, and uncertainty intervals help readers interpret what the aggregate health-loss value represents.

• DALY Calculator

  Compute disability-adjusted life years as YLL (deaths times standard life expectancy at death) plus YLD (incidence times disability weight times duration), undiscounted and without age weighting per the GBD 2010+ convention.

• YLD Calculator

  Compute years lived with disability as the sum of case counts times disability weights, using either current prevalence or incidence times duration; prevalence is the default per the GBD 2010+ convention.

• HALE Calculator

  Compute health-adjusted life expectancy as total life expectancy minus the expected number of years lived in reduced health, per the definitional identity used by summary measures of population health.