GBD 2010 estimated ‘prevalent’ YLDs by multiplying prevalence estimates from DisMod-MR by the disability weight. DisMod-MR prevalence and burden estimates were stratified by sex, age, country and 21 GBD regions (see http://www.globalburden.com.au/docs/Regions.pdf and Table S2 for country groupings), and for the years 1990, 2005, and 2010.