Table 4.

Correlation analyses between average ICA z-scores in the ROIs and clinical variables in patients with OSAHS

	bilateral PCC(DMN)		right MFG(DAN)		left STG(VAN)		right SFG(SN)
	r	P	r	P	r	P	r	P
MMSE	-0.19	0.489	0.09	0.746	0.19	0.475	-0.12	0.650
TMT-A	-0.32	0.220	-0.32	0.228	0.28	0.290	0.13	0.632
TMT-B	-0.04	0.880	-0.23	0.397	0.09	0.737	0.47	0.068
DST-forward	0.27	0.311	0.25	0.356	-0.07	0.807	-0.12	0.647
DST-backward	0.12	0.655	0.38	0.153	-0.05	0.863	0.06	0.837
RAVLT-immediate recall	0.09	0.742	0.11	0.699	0.08	0.762	0.00	0.990
RAVLT-delayed recall	-0.06	0.825	0.11	0.685	0.46	0.075	0.21	0.444
RAVLT-learning	-0.07	0.806	0.00	0.991	0.15	0.587	0.07	0.803
RAVLT-forgetting	0.12	0.667	0.02	0.957	-0.26	0.336	-0.11	0.686
AHI	-0.39	0.131	-0.21	0.437	0.08	0.781	0.04	0.899
SIT90	-0.59	0.015*	-0.38	0.153	0.05	0.845	0.14	0.609
ArI	-0.53	0.034*	-0.41	0.119	0.04	0.886	0.19	0.472
REM% + N3%	0.12	0.650	0.00	0.997	0.12	0.647	0.25	0.344

AHI apnea–hypopnea index, SIT ₉₀ saturation impair time below 90%, ArI arousal index, REM rapid eye movement, N3 nonrapid eye movement stage 3, MMSE Mini-Mental State Examination, TMT trail-making test, DST digit span test, RAVLT Rey's auditory verbal learning test, PCC posterior cingulate gyri, MFG middle frontal gyrus, STG superior temporal gyrus, SFG superior frontal gyrus, * P < 0.05