Fig. 4From: The global, regional, and national burden of appendicitis in 204 countries and territories, 1990–2019: a systematic analysis from the Global Burden of Disease Study 2019Age-standardized YLDs rates of appendicitis in 21 GBD regions by SDI, 1990–2019. Expected values based on Socio-demographic Index and disease rates in all locations are shown as the black line. YLDs, years lived with disability. GBD, Global Burden of Diseases, Injuries, and Risk Factors Study. SDI, Sociodemographic IndexBack to article page