Table 1.

Demographic and Clinical Characteristics of the Patients (n = 122)

Age, months Median (25-75th percentile)	23 (8-96)
Sex, n (%) Female	67 (54.9)
Underlying disease*  Yes, n (%)  No, n (%)	103 (84.3) 19 (15.7)
SDB-related symptoms, n (%)  Witnessed apnea  Mouth breathing  Snoring  Nighttime sweating  Daytime sleepiness  Dry mouth  Abnormal sleep positions  Difficulty in wake-ups  Headache  Hyperactivity	42 (34.4) 33 (27) 30 (24.6) 16 (13.1) 15 (12.3) 9 (7.4) 8 (6.6) 6 (4.9) 5 (4.1) 5 (4.1)
Positive family history for SDB, n (%)	25 (20.5)
Prematurity, n (%)	24 (19.7)
Venous carbon dioxide level (mean ± SD)	42.48 ± 7.78