Table 4

Comparison between participants with and without obstructive sleep apnea

Variable	Group; mean ± SD^*		p value
Variable	OSA n = 24	No OSA n = 20	p value
Age, yr	49.0 ± 15.4	33.3 ± 15.1	0.001
Body mass index	26.2 ± 3.8	23.2 ± 2.9	0.09
Positive result on STOP questionnaire, no. (%)	8 (33)	1 (5)	0.05^†
Epworth Sleepiness Scale score	5.4 ± 3.9	3.9 ± 3.1	0.2
NOSE scale score	29.2 ± 28.5	13.8 ± 17.6	0.04
Apnea–Hypopnea Index (events/h)	15.5 ± 9.7	2.4 ± 1.5	< 0.001
Oxygen desaturation index, %	11.6 ± 8.9	1.9 ± 1.2	0.002
Arterial oxygen saturation, %	94.9 ± 2.0	96.0 ± 1.2	0.04
Minimum arterial oxygen saturation, %	86.3 ± 6.0	91.1 ± 3.2	0.003

NOSE = Nasal Obstruction Symptom Evaluation; OSA = obstructive sleep apnea; SD = standard deviation; STOP = snoring, tiredness, observed apnea, high blood pressure.
↵* Except where noted otherwise.
↵† χ² test (positive v. negative result).