Table 1.

Demographic characteristics and screening test scores.

Group	N	Age (years)	Male (%)	HY (stage)	Education (years)	LEDD (mg)	MMSE score	MoCA score
PD-NC	32	68.6 (8.8)	63	2.5 (0.6)	13.0 (2.4)	700 (475)	29.3 (0.7)	27.8 (1.2)
PD-MCI	23	70.9 (8.2)	65	2.6 (0.8)	12.9 (1.4)	725 (314)	28.1 (1.5)	24.4 (1.4)
PD-D	8	70.5 (5.9)	75	3.1 (1.3)	12.8 (1.8)	450 (397)	24.6 (2.1)	17.6 (2.6)

PD-NC, PD patients with MoCA score ≥26; PD-MCI, PD patients with MoCA score 21–25; PD-D, PD patients with MoCA score <21; MMSE, Mini Mental State Examination; MoCA, Montreal Cognitive Assessment; HY, Hoehn and Yahr stage; LEDD, levodopa equivalent daily dose.