Table 1. Baseline characteristics of moderate and severe OSA patients.
| Total (n=45) | Moderate OSA (n=21) | Severe OSA (n=24) | p | |
|---|---|---|---|---|
| Age, years | 47.4±12.1 | 44.6±13.4 | 49.8±10.4 | 0.159 |
| Sex, male | 43 (95.6) | 20 (95.2) | 23 (95.8) | 0.923 |
| Height, cm | 170.6±7.8 | 172.0±7.5 | 169.3±7.9 | 0.253 |
| Weight, kg | 77.9±11.2 | 79.6±11.5 | 76.5±10.9 | 0.357 |
| BMI, kg/m2 | 26.8±3.3 | 26.8±2.9 | 26.7±3.8 | 0.871 |
| BMI ≥30 kg/m2 | 7 (15.6) | 3 (14.3) | 4 (16.7) | 0.826 |
| Neck circumference, cm | 39.1±2.5 | 39.5±2.3 | 38.7±2.7 | 0.298 |
| SBP, mm Hg | 129.9±16.0 | 129.0±16.8 | 130.8±15.5 | 0.720 |
| DBP, mm Hg | 81.6±14.9 | 80.4±14.3 | 82.7±15.6 | 0.612 |
| HTN | 11 (24.4) | 5 (23.8) | 6 (25.0) | 0.926 |
| DM | 4 (8.9) | 1 (4.8) | 3 (12.5) | 0.363 |
| HL | 5 (11.1) | 1 (4.8) | 4 (16.7) | 0.205 |
| CVD | 4 (8.9) | 2 (9.5) | 2 (8.3) | 0.889 |
| OA compliance*, % | 63.4±28.4 | 52.7±29.2 | 72.8±24.6 | 0.018 |
| OA use, h/day | 6.3±1.2 | 6.1±1.3 | 6.5±1.0 | 0.253 |
Data are mean±SD or n (%) values.
*Percentage of days that OA worn for >4 h.
BMI: body mass index, CVD: cardiovascular disease, DBP: diastolic blood pressure, DM: diabetes mellitus, HL: hyperlipidemia, HTN: hypertension, OA: oral appliance, OSA: obstructive sleep apnea, SBP: systolic blood pressure.