Table 2.

Comparisons of variables among OSA-severity groups

Outcome	Instrument	Group	Baseline (Mean ± SD)	Post treatment (Mean ± SD)	Change Score (Mean ± SD)	p	Effect Size*
Intimate/Sexual Relationships	FOSQ	All OSA subjects	3.17 ± 0.79	3.62 ± 0.59	0.44 ± 0.73	< 0.001	0.61
		AHI 20 to < 40	3.30 ± 0.79	3.55 ± 0.68	0.25 ± 0.73	ns	0.34
		AHI 40 to ≤ 60	3.22 ± 0.72	3.59 ± 0.70	0.37 ± 0.70	ns	0.53
		AHI > 60	3.10 ± 0.81)	3.65 ± 0.52	0.55 ± 0.72	< 0.001	0.76
Sleepiness	MSLT	All OSA subjects	7.26 ± 5.29	9.24 ± 6.01	2.04 ± 4.85	< 0.001	0.42
		AHI 20 to < 40	8.55 ± 5.41	9.52 ± 5.75	0.93 ± 4.41	ns	0.21
		AHI 40 to ≤ 60	7.78 ± 4.50	8.74 ± 6.05	0.66 ± 5.03	ns	0.13
		AHI > 60	6.56 ± 5.42	9.29 ± 6.19	2.97 ± 4.84	< 0.01	0.61
	ESS	All OSA subjects	14.48 ± 4.90	8.39 ± 5.03	−6.14 ± 0.97	< 0.001	6.33
		AHI 20 to < 40	13.40 ± 4.97	10.33 ± 5.80b	−2.80 ± 4.92	< 0.05	0.57
		AHI 40 to ≤ 60	13.05 ± 4.63a	8.30 ± 5.13	−4.95 ± 5.52	< 0.01	0.90
		AHI>60	15.32 ± 4.84a	7.64 ± 4.50b	−7.82 ± 5.90	< 0.01	1.33

^*Effect Size: mean of change scores/SD change;

^asignificant difference at baseline between these two groups, p < 0.05;

^bsignificant difference post treatment between these two groups, p < 0.05