Table 5.

Correlation between hippocampus functional connectivity and sleep respiratory parameters among patients in the obstructive sleep apnea group.

n = 15		RMTG	LPCG	RT	RSTG	LAG	ACG	LACL
AHI	r =	−0.080	−0.101	0.295	0.277	0.536	0.708	0.308
	p =	0.826	0.781	0.409	0.438	0.110	0.022*	0.387
ODI	r =	−0.023	−0.083	0.403	0.272	0.652	0.737	0.219
	p =	0.950	0.820	0.248	0.438	0.042*	0.015*	0.543
MSaO2	r =	0.239	0.416	−0.571	0.044	−0.467	−0.791	−0.265
	p =	0.506	0.232	0.085	0.904	0.174	0.006*	0.459
ESS	r =	−0.650	−0.043	0.323	−0.155	0.167	0.108	−0.155
	p =	0.042*	0.905	0.363	0.670	0.644	0.767	0.670
N1/TST (%)	r =	−0.033	0.089	−0.595	−0.181	−0.719	−0.615	−0.103
	p =	0.928	0.806	0.070	0.617	0.019*	0.058	0.776
LS/TST (%)	r =	0.254	0.761	−0.800	−0.122	−0.265	−0.893	−0.518
	p =	0.479	0.011*	0.005**	0.736	0.459	<0.001**	0.125
N3/TST (%)	r =	0.118	−0.641	0.585	−0.260	0.282	0.778	0.115
	p =	0.745	0.046*	0.076	0.468	0.430	0.008**	0.751
REM/TST (%)	r =	−0.720	−0.344	0.522	0.712	0.009	0.353	0.817
	p =	0.019	0.330*	0.122	0.021	0.980	0.317	0.004

The data were analyzed by the method of partial correlation analysis with adjustment of the confounding factors of age, education, body mass index, smoking index, and drinking index.

AHI, apnea–hypopnea index; ODI, oxygen desaturation index; ESS, Epworth Sleep Scale; MSaO₂, mean oxygen saturation; TST, total sleep time; REM, rapid eye movement; N1, stage 1 sleep; N3, stage 3 sleep; LS, light sleep; SP, systolic pressure; LPCG, left posterior cingulate gyrus; RMTG, right middle temporal gyrus; RT, right thalamus; RSTG, right superior temporal gyrus; ACG, anterior cingulated gyrus; LAG, left angular gyrus; LACL, left anterior cerebellum lobe.

^*p < 0.05 and

^**p < 0.01.