Comparison of the cumulative incidence of newly diagnosed depressive symptoms over follow‐up (in months). Dashed lines indicate differences between the cumulative incidence across different disorders at 1, 2, and 3 years of follow‐up. PD, Parkinson's disease; DLB, dementia with Lewy bodies; MSA, multiple system atrophy; CBD, corticobasal degeneration; PSP, progressive supranuclear palsy.