[Retracted] NREM Sleep EEG Characteristics Correlate to the Mild Cognitive Impairment in Patients with Parkinsonism

Table 2

The EEG power spectral analysis and DFA in PDS-NC and PDS-MCI patients.

	PDS-NC	PDS-MCI	P
alpha-NREM (C4)	0.08±0.032	0.05±0.015	0.032
alpha-NREM (O1)	0.08±0.034	0.05±0.023	0.022
alpha-wake (C4)	0.15±0.068	0.10±0.061	0.037
alpha-wake (O1)	0.17±0.094	0.11±0.041	0.016
sigma-wake (C4)	0.04±0.015	0.03±0.015	0.045
sigma-wake (O1)	0.04±0.017	0.03±0.012	0.038
beta-wake (C4)	0.13±0.050	0.08±0.031	0.005
beta-wake (O1)	0.12±0.041	0.08±0.032	0.003
fast ratio-NREM (C4)	1.12±0.60	0.70±0.32	0.022
fast ratio-NREM (O1)	1.24±0.55	0.65±0.24	0.001
fast ratio-wake (C4)	1.27±0.702	0.82±0.435	0.031
fast ratio-wake (O1)	1.40±0.64	0.73±0.28	0.001
DFA-NREM (C4)	0.76±0.12	0.87±0.14	0.011
DFA-NREM (O1)	0.80±0.12	0.90±0.12	0.005
DFA-wake (C4)	0.76±0.13	0.87±0.16	0.026
DFA-wake (O1)	0.80±0.12	0.90±0.11	0.012

Abbreviations: PDS-NC: parkinsonism with normal cognitive function; PDS-MCI: parkinsonism with mild cognitive impairment; NREM: nonrapid eye movement; DFA: detrended fluctuation analysis. Fast ratio: .