Validation of Revised Chinese Version of PD-CRS in Parkinson’s Disease Patients

Table 5

Comparisons of PD-CRS between PD-NC, PD-MCI, and PDD groups.

	PD-NC	PD-MCI	PDD		PD-NC vs. PD-MCI^c	PD-NC vs. PDD^c	PD-MCI vs. PDD^c
Immediate free-recall verbal memory	8.81 ± 2.132	6.70 ± 2.681	4.73 ± 1.191	<0.001^a	<0.001	<0.001	0.014
Confrontation naming	17.57 ± 2.523	17.09 ± 2.351	14.91 ± 2.809	0.008^b	0.717	0.006	0.051
Sustained attention	7.46 ± 2.116	5.32 ± 2.785	3.00 ± 2.646	<0.001^a	<0.001	<0.001	0.008
Working memory	6.46 ± 2.445	4.82 ± 1.618	3.64 ± 1.362	<0.001^b	0.012	0.001	0.168
Clock drawing	9.05 ± 1.311	7.82 ± 2.026	5.18 ± 3.573	<0.001^b	0.007	<0.001	0.143
Copying a clock	9.84 ± 0.442	9.57 ± 0.818	6.73 ± 3.495	<0.001^b	0.620	<0.001	<0.001
Delayed free-recall verbal memory	7.43 ± 2.714	5.11 ± 2.572	2.36 ± 2.420	<0.001^a	<0.001	<0.001	0.002
Alternating verbal fluencies	9.70 ± 3.566	6.64 ± 3.577	3.55 ± 3.045	<0.001^b	0.004	<0.001	0.069
Action verbal fluencies	10.97 ± 4.213	8.77 ± 4.220	4.82 ± 3.219	<0.001^a	0.019	<0.001	0.005
Frontal-subcortical functions	59.89 ± 10.448	45.18 ± 12.901	27.27 ± 11.577	<0.001^a	<0.001	<0.001	<0.001
Instrumental-cortical functions	27.41 ± 2.682	26.66 ± 2.272	21.64 ± 4.523	<0.001^b	0.203	<0.001	0.004
PD-CRS total score	87.30 ± 11.244	71.84 ± 14.144	48.91 ± 14.916	<0.001^a	<0.001	<0.001	<0.001

PD-CRS: Parkinson’s disease-cognitive rating scale; PD: Parkinson’s disease; PD-NC: PD patients with normal cognition; PD-MCI: PD patients with mild cognitive impairment; PDD: PD patients with dementia. ^aOne-way analysis of variance (ANOVA); ^bKruskal–Wallis test; ^cBonferroni test.