Table 2.

Comparisons of MOCA, PDSS-2, and ESS scores between NC and PD groups.

	Simple size, number	Female/male	Age (y)	Education (y)	MOCA∗∗∗	PDSS-2∗	ESS∗	PSQI
NC	36	18/18	69.69 ± 0.74	12.86 ± 0.34	26.78 ± 0.33	10.03 ± 0.97	5.28 ± 0.65	6.33 ± 0.75
PD	30	16/14	67.53 ± 1.63	12.40 ± 0.44	24.17 ± 0.53	15.27 ± 2.10	7.80 ± 1.08	6.90 ± 1.20

Data are presented as the mean ± standard error of the mean (SEM). NC: age-matched normal controls; PD: Parkinson's disease patients. ^∗p < 0.05, ^∗∗∗p < 0.001; statistically significant difference between the NC group and the PD group.