Table 2.
Sleep Variables in OSA Patients with and without CPAP Treatment
| Variables | No CPAP | CPAP | P |
|---|---|---|---|
| Total sleep time, min | 384.97 ± 14.1 | 390.08 ± 12.20 | NS |
| N1, min | 49.00 (19.50–78.00) | 33.50 (13.50–91.50) | NS |
| N2, min | 217.22 ± 13.10 | 197.39 ± 10.09 | NS |
| N3, min | 56.78 ± 7.75 | 82.83 ± 9.64 | <0.01 |
| REM sleep, min | 63.89 ± 6.63 | 74.00 ± 4.47 | NS |
| N1, % | 12.38 ± 1.14 | 9.21 ± 1.03 | <0.05 |
| N2, % | 56.44 ± 3.42 | 50.70 ± 2.14 | NS |
| N3, % | 14.80 ± 1.91 | 21.30 ± 2.30 | <0.01 |
| REM sleep, % | 16.25 ± 1.45 | 18.74 ± 0.86 | NS |
| Microarousal index | 30.77 ± 2.32 | 11.82 ± 1.46 | <0.001 |
| Arousal index | 30.58 ± 2.30 | 11.91 ± 1.52 | <0.001 |
| Sleep efficiency, % | 78.67 ± 2.32 | 84.71 ± 2.01 | <0.01 |
| PLMI | 8.40 (1.00–29.30) | 1.10 (0.00–7.60) | <0.001 |
| AHI, events/h | 44.00 (22.30–91.40) | 1.70 (0.30–10.10) | <0.001 |
| Mean duration of apnea, s | 27.00 (15.00–56.00) | 17.00 (11.00–28.00) | <0.001 |
| Minimal SpO2, % | 75.50 (55.00–85.00) | 90.00 (86.00–93.00) | <0.001 |
| Mean SpO2, % | 94.50 (90.00–97.00) | 96.00 (94.00–97.00) | <0.01 |