Table 1.
Characteristics and sleep assessment data of patients with (oAHI ≥ 2) and without (oAHI <2) obstructive sleep apnea at baseline.
| OSA (oAHI ≥2) | Non-OSA (oAHI <2) | p-value | |
|---|---|---|---|
| N | 20 | 83 | |
| Sex (male/female) | 14/6 | 36/47 | 0.03 |
| Age (years) | 12.8 ± 2.6 | 12.3 ± 2.1 | 0.4 |
| Weight (kg) | 84.33 ± 19.58 | 78.92 ± 19.99 | 0.3 |
| Height (cm) | 159.35 ± 11.85 | 158.49 ± 12.18 | 0.8 |
| BMI (kg/m2) | 32.76 ± 4.06 | 30.74 ± 4.18 | 0.06 |
| BMI z score | 2.50 (1.90–3.20) | 2.40 (1.70–3.10) | 0.1 |
| Waist (cm) | 95.8 (73.5–117.0) | 91.0 (65.0–118.0) | 0.1 |
| WHR | 0.90 (0.73–1.00) | 0.87 (0.74–1.06) | 0.1 |
| Systolic blood pressure (mmHg) | 116.20 ± 11.76 | 111.14 ± 11.02 | 0.07 |
| Diastolic blood pressure (mmHg) | 69 (58–87) | 63 (46–88) | 0.04 |
| Systolic blood pressure percentile | 79 (6–99) | 66 (3–99) | 0.08 |
| Diastolic blood pressure percentile | 72 (21–98) | 46 (4–99) | 0.03 |
| Lean % (%) | 45.59 ± 5.58 | 47.56 ± 6.40 | 0.5 |
| Fat % (%) | 41.71 ± 4.15 | 40.49 ± 4.44 | 0.3 |
| oAHI (events/h) | 3.15 (2.00–14.40) | 0.48 (0.00–1.70) | <0.001 |
| ODI (events/h) | 1.65 (0.00–6.90) | 0.20 (0.00–5.10) | <0.001 |
| TST 95 (%) | 0.10 (0.00–2.60) | 0.00 (0.00–3.90) | 0.003 |
| Mean SaO2 (%) | 96.84 ± 0.77 | 97.08 ± 0.74 | 0.2 |
| Number of desaturations | 55 (1–268) | 11 (0–136) | <0.001 |
BMI, body mass index; BMI z, BMI standard deviation; WHR, waist-to-hip ratio; oAHI, obstructive apnea-hypopnea index; ODI, oxygen desaturation index; TST, total sleep time; TST 95, total sleep time with saturation under 95%; mean SaO2, mean oxygen saturation.