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Table 3 Stepwise linear regression showing the model with the highest adjusted R2 value for the PD group

From: Beta amyloid deposition and cognitive decline in Parkinson’s disease: a study of the PPMI cohort

Regions of interest

R2

Adjusted R2

Standard error of the estimate

p-value

MoCA at scan

 Left occipital cortex

0.183

0.148

2.269

0.033

MoCA 1 year after scan

 Left gyrus rectus, right parietal cortex, left anterior cingulum

0.564

0.495

2.298

0.001

MoCA 2 years after scan

 Right parietal cortex, right gyrus rectus

0.387

0.319

2.889

0.012