TABLE 1.
Baseline characteristics of the participants (M ± SD).
| Variables | OSA (n = 17) | HC (n = 20) | t | p |
| Demographic data | ||||
| Age (year) | 42.97 ± 7.15 | 39.48 ± 8.62 | 1.325 | 0.194 |
| Gender (M:F) | 13:4 | 14:6 | 0.195 | 0.659 |
| Height (cm) | 170.50 ± 7.61 | 170.47 ± 8.27 | 0.009 | 0.992 |
| Weight (kg) | 85.59 ± 10.95 | 73.62 ± 13.44 | 2.933 | <0.05* |
| BMI (kg/m2) | 29.69 ± 5.19 | 25.28 ± 4.04 | 2.901 | <0.05* |
| Polysomnographic data | ||||
| Apnea/hypopnea index | 44.99 ± 21.93 | 1.45 ± 1.32 | 8.174 | <0.001** |
| Apnea index | 28.33 ± 13.83 | 0.35 ± 0.61 | 8.331 | <0.001** |
| Hypopnea index | 16.66 ± 16.27 | 1.05 ± 1.17 | 3.946 | <0.05* |
| Minimal SaO2 value (%) | 73.05 ± 9.52 | 90.65 ± 2.64 | −7.379 | <0.001** |
| Total sleep time (min) | 402.4 ± 55.1 | 395.2 ± 52.4 | 0.281 | 0.781 |
| Sleep efficiency (%) | 90.78 ± 5.96 | 84.20 ± 11.48 | 2.234 | <0.05* |
| Sleep onset latency (min) | 16.00 ± 22.21 | 23.85 ± 30.62 | −0.878 | 0.386 |
| N1 stage proportion (%) | 9.25 ± 6.47 | 6.72 ± 3.88 | 1.196 | 0.243 |
| N2 stage proportion (%) | 58.72 ± 12.79 | 57.85 ± 10.54 | 0.164 | 0.871 |
| N3 stage proportion (%) | 17.55 ± 6.28 | 22.60 ± 9.58 | −1.207 | 0.239 |
| REM stage proportion (%) | 9.45 ± 3.93 | 12.83 ± 5.71 | −1.348 | 0.190 |
*p < 0.05, **p < 0.001.