Table 5.

Device usage between insomnia subtypes in patients with COMISA.

Characteristic	n	Overall (n = 133)	Sleep Initiation (n = 33)	Sleep Maintenance (n = 73)	Both (n = 27)	P a
Hours/night of use	133	4.8 (2.8)	4.9 (3.1)	4.6 (2.7)	5.2 (2.6)	.4
Percent of nights ≥ 4 h of use	49	74.7 (26.1)	83.1 (25.2)	72.8 (24.5)	71.1 (31.2)	.2
Pauses/night	50	1.5 (1.6)	1.4 (1.1)	1.4 (1.6)	1.6 (2.2)	.8

Data are presented as mean (standard deviation). ^aKruskal-Wallis rank-sum test. COMISA = comorbid insomnia and obstructive sleep apnea.