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

Table 4

Baseline comparisons between the PD patients with and without dementia.

	Dementia
	Yes (𝑛=4)	No (𝑛=57)	𝑃
Gender (m)	2 (50.0)	26 (45.6)	1.000
Tremor subtype	0 (0)	34 (59.6)	0.034*
Hallucinations	2 (50.0)	2 (3.5)	0.019*
FAB	3 (75.0)	14 (40.0)	0.303
MMSE	3 (75.0)	3 (5.3)	0.002**
Age > 72	4 (100)	28 (49.1)	0.114
Age of onset > 69	4 (100)	29 (50.9)	0.118
Duration > 2	2 (50)	29 (50.9)	1.000
Education > 3	2 (50)	33 (57.9)	1.000
HY stage > 1	4 (100)	36 (63.2)	0.289
DED > 395	4 (100)	29 (50.9)	0.118
UPDRS total > 16	4 (100)	29 (50.9)	0.118
Speech	4 (100)	25 (43.9)	0.046*
Tremor > 4	2 (50)	17 (29.8)	0.582
Rigidity > 1	4 (100)	24 (42.1)	0.039*
Bradykinesia	4 (100)	26 (45.6)	0.053
Gait/posture > 1	4 (100)	25 (43.9)	0.046*

Values are number of patients (percentage). 𝑃 value is significance for chi-square statistics. *𝑃<0.05, **𝑃<=0.01.