Table 2.

Spearman’s rank correlations

	r s	P
AHI vs.
Retropalatal
EC-wake	−0.49	0.152
EC-sleep	0.22	0.53
ΔEC	0.32	0.37
Δ%CSA	0.26	0.48
Retroglossal
EC-wake	−0.22	0.53
EC-sleep	0.74	0.0141
ΔEC	0.77	0.010
Δ%CSA	0.43	0.22
Retroglossal ΔEC vs.
Retroglossal
%CSA-sleep	0.76	0.014
Δ%CSA	0.81	0.0082