Fig. 4

Temporal trend of PD burden in people over 55 years of age by age pattern in different regions. (A). Prevalent cases of 9 age groups (55–95 years, 5-year intervals) from 1990 to 2021 globally and in 5 territories (low to high SDI). (B). The distribution of prevalent cases across 9 age groups as percentages globally, in 5 territories, and 21 GBD regions in 1990 and 2021. (C). Percentage change in prevalent cases of 9 age groups globally and in 5 territories in 1990 and 2021. (D). EAPC of prevalent rates of 9 age groups globally and in 5 territories from 1990 to 2021