Predictors of Cognitive Decline in the Early Stages of Parkinson's Disease: A Brief Cognitive Assessment Longitudinal Study

Table 2

Mini-mental state examination scores’ variation.

MMSE scores	𝑡0	𝑡1	Mean variation	𝑃
Total score	27.20 (2.544)	27.11 (2.745)	−0.098 (4%)	0.678
Orientation	9.59 (0.844)	9.48 (0.924)	−0.115 (1%)	0.289
Registration	3.00	3.00	0
Attention and calculation	4.00 (1.252)	4.07 (1.276)	0.066 (2%)	0.636
Recall	2.31 (0.720)	2.39 (0.737)	0.082 (4%)	0.450
Language	7.62 (0.522)	7.67 (0.598)	0.492 (1%)	0.496
Visuoconstructive ability	0.66 (0.479)	0.54 (0.502)	−0.115 (17%)	0.090

Values are mean standard deviation or mean variation (percent variation). Negative value means decrease from 𝑡₀ to 𝑡₁. 𝑃 value is significance for paired sample student’s 𝑡-tests. Registration scores remained constant throughout the study.