Table 1.

Participant Demographics. Data are presented as mean ± SEM for continuous variables and count (%) for categorical variables.

	Control (n = 38)	PTSD (n = 38)	Statistic	P Value
Age, years	55.6 ± 2.7	50.4 ± 2.6	1.41	0.163
BMI	31.1 ± 1.1	31.0 ± 1.3	0.04	0.965
Sex (% male)	35 (92%)	28 (87%)	0.14	0.709
AHI	6.7 ± 0.7	6.8 ± 0.8	0.10	0.921
PCL-5, score	11.2 ± 1.3	49.9 ± 1.9	16.81	<0.001

AHI = apnea-hypopnea index, PCL-5 = Post-Traumatic Stress Disorder Checklist for DSM-V.