Fig. 3

Trend of the age-standardized rates of mental disorders in 1990–2021. (a) Temporal trends in the sex-specific age-standardized incidence rate in global and all the SDI regions; (b) Temporal trends in the sex-specific age-standardized DALYs rate in global and all the SDI regions; (c) The age-standardized rates of mental disorders in 21 GBD regions by SDI. For each region, points from left to right depict estimates from each year from 1990 to 2021. The blue line represents the average expected relationship between socio-demographic index (SDI) and burden estimates rates for mental disorders based on values from each geographical region over the 1990–2021 estimation period