Fig. 1

Weighted median annualized rates of change (a) and change of logarithm of values (b) in disability-adjusted life-years (DALYs) for patients with severe mental disorders in Guangdong, China, during 2010–2020, by SDI group. Notes: SDI = Socio-demographic Index. SDI groups were generated by calculating quintiles at the set of percentiles p = {0, 0.2, 0.4, 0.6, 0.8, 1.0}, in which five categories of SDI were yielded (namely, low SDI < 0.11, Low-middle SDI < 0.14, Middle SDI < 0.24, high-middle SDI < 0.52, and High SDI ≥ 0.56). In (a), the median of SDI during 2010–2020 was plotted, whereas the blue line reflects the linear relationship between estimated SDI and weighted median annualized rates of change in DALYs ascribed to severe mental disorders. In (b), the logarithm of DALYs across 21 prefecture cities was further aggregated by the median for the four economic regions. Arrows indicate the direction of change in the logarithm of DALY, where comorbidity-adjusted values were reported