Fig. 2From: Trends in burden of multidrug-resistant tuberculosis in countries, regions, and worldwide from 1990 to 2017: results from the Global Burden of Disease studyThe distribution of the incident number of MDR-TB globally, and in SDI areas and geographic regions from1990 to 2017. a The incident number of MDR-TB in age groups; b The changing of incident number of MDR-TB in SDI areas; c The incident number of MDR-TB in geographical regions. MDR-TB: multidrug resistant tuberculosis; SDI: socio-demographic indexBack to article page