TABLE 1.

Demographic, clinical, and cognitive data of MSA and HC.

Demographic variable	MSA-NCI (n = 25)	MSA-MCI (n = 20)	HC (n = 29)	Z/χ2	p-value
Age (years)	62.52 ± 6.90	64.15 ± 9.22	61.17 ± 6.77	0.672	0.715
Sex (F:M)	12: 13	14: 6	20: 9	3.225	0.199
Education (years)	11.32 ± 3.18	11.70 ± 2.97	12.52 ± 3.10	2.040	0.361
Disease duration (years)	4.44 ± 2.10	3.80 ± 2.19	–	–1.254	0.210
MoCA	26.80 ± 1.22	20.10 ± 2.71	27.17 ± 1.23	46.454	0.000*
UMSARSII	7.24 ± 5.16	15.60 ± 2.76	–	4.592	0.000*
UMSARSIII	34.00 ± 13.59	38.90 ± 17.48	–	1.006	0.314

Variables are mean ± standard deviation: MSA, multiple system atrophy; MCI, mild cognitive impairment; NCI, no cognitive impairment; HC, healthy controls; MoCA, Montreal Cognitive Assessment; UMSARSII and UMSARSIII, Unified Multiple System Atrophy Rating Scale parts II and part III; p < 0.05 was considered statistically significant; 0.000*, values < 0.000.