Table 3.

Spearman correlations between respiratory cycle-related EEG changes (RCREC) measured during baseline vs. positive airway pressure (PAP) titration studies

RCREC Frequency Band	All Subjects (n = 50)		RDI* < 24 (n = 24)		RDI* ≥ 24 (n = 26)
	Rho	P	Rho	P	Rho	P
Delta	0.17	0.230	0.14	0.519	0.25	0.216
Theta	0.17	0.228	−0.03	0.888	0.35	0.077
Alpha	0.17	0.240	0.27	0.204	0.19	0.359
Sigma	0.14	0.335	0.00	0.990	0.47	0.014
Beta	0.32	0.022	0.23	0.290	0.48	0.013

^*RDI, respiratory disturbance index.