Table 2.

Brain regions with significantly elevated ¹¹C-PK11195 non-displaceable binding potential in Parkinson’s disease high and low dementia risk patients compared with controls

Region of interest	P-value | BF10
PD high dementia risk group versus controls
Hippocampus	0.016 | 4.12
Amygdala	0.012 | 5.22
Putamen	0.002 | 21.88
Substantia nigra	0.030 | 2.58
Insula	0.047 | 1.89
Cerebellum dentate	0.016 | 4.10
Lateral orbital gyrus	0.039 | 2.15
Posterior orbital gyrus	0.034 | 2.36
PD low dementia risk group versus controls
Lateral orbital gyrus	0.007 | 7.86
Inferior frontal gyrus	0.031 | 2.58
PD high dementia risk group versus PD low dementia risk group
Hippocampus	0.047 | 1.97
Amygdala	0.041 | 2.15
Substantia nigra	0.028 | 2.82
Putamen	0.048 | 1.92

BF₁₀ = Bayes factor; PD = Parkinson’s disease.