Table 4.

Device usage between patients with and without a comorbid sleep disorder.

Characteristic	n	Overall (n = 274)	OSAa (n = 126)	COMISA (n = 148)	P a
Hours/night of use	274	5.3 (2.7)	5.8 (2.4)	4.9 (2.8)	.015
Percent of nights ≥ 4 h of use	103	75.4 (25.7)	77.1 (24.7)	73.9 (26.6)	.5
Pauses/night	105	0.9 (1.3)	0.4 (0.7)	1.4 (1.6)	<.001

Data are presented as mean (standard deviation). ^aWilcoxon rank-sum test. COMISA = comorbid insomnia and obstructive sleep apnea, OSAa = obstructive sleep apnea alone.