GBD 2021 Methods Appendices

Preamble

This appendix provides further methodological detail for the following GBD 2021 publications:
 

• Global burden of 288 causes of death and life expectancy decomposition in 204 countries and territories and 811 subnational locations, 1990–2021
• Global incidence, prevalence, years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries in 204 countries and territories and 811 subnational locations, 1990–2021
• Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990-2021: a systematic analysis for the Global Burden of Disease Study 2021
   

The GBD study complies with the Guidelines for Accurate and Transparent Health Estimates Reporting (GATHER) statement. Please see Data transparency for more information.