Figure 1.

¹¹C-PK11195 non-displaceable binding potential in Parkinson’s disease patients at low and high risk of dementia. Tukey box plots of ¹¹C-PK11195 binding potential in controls, low dementia risk, and high dementia risk patients with Parkinson’s disease (PD). The box plots show individual data-points, the median and the interquartile range. *Significant difference between PD high dementia risk patients and controls. ^#Significant difference between PD low dementia risk patients and controls. Red asterisks indicate significant difference between PD high dementia risk and PD low dementia risk groups. Tukey whiskers demarcate furthest values that lie within 1.5 interquartile ranges.