Usefulness of Home Overnight Pulse Oximetry in Patients with Suspected Sleep-Disordered Breathing

Table 2

Number and percentage of the subjects reporting each of the symptoms stratified by severity.

Symptom	No SAHS (n = 30)	Mild-to-moderate SAHS (n = 34)	Severe SAHS (n = 40)	value
Snoring (number, %)	27 (90%)	33 (97%)	38 (95 %)	0.468
Gasping (number, %)	4 (13, 3%)	4 (11, 8%)	12 (30%)	0.130
Witnessed apneas (number, %)	1 (3, 3%)	21 (61, 8%)	35 (87, 5%)	0 < 001≠
Nocturia (number, %)	15 (50%)	16 (47, 1)	26 (65%)	0.252
Unrefreshing sleep (number, %)	19 (63, 3%)	20 (58, 8%)	22 (55%)	0.784
Morning headaches (number, %)	6 (20%)	12 (35, 3%)	7 (17, 5%)	0.171
Excessive daytime sleepiness ‡ (number, %)	1 (3, 3%)	1 (2, 9%)	3 (7, 5%)	0.266

value of the Kruskal–Wallis test comparing subgroup classified for severity. ≠ value of no SAHS vs. severe SAHS groups. ‡ = Epworth sleepiness scale ≥15.