Table 2.
Comparison of sleep characteristics between obstructive sleep apnea syndrome (OSAS) patients with (HOMA-IR ≥ 2) and without (HOMA-IR < 2) insulin resistance.
| OSAS Patients With HOMA IR < 2 n = 34 |
OSAS Patients With HOMA IR ≥ 2 n = 58 |
p | |
|---|---|---|---|
| TST (min) | 330 (297.8–350.5) | 320 (275.9–350) | 0.414 |
| N1 (%) | 9.2 (2.8–21.5) | 11.2 (6.6–18.5) | 0.824 |
| N2 (%) | 67.2 (54.2–74.8) | 71.7 (60.2–78.8) | 0.103 |
| N3 (%) | 11.6 (3.3–17.3) | 1 (0–10) | 0.008 |
| REM (%) | 10.1 ± 7.8 | 9 ± 6 | 0.480 |
| AHI (events/h) | 40.9 ± 27.9 | 57.4 ± 28.9 | 0.009 |
| Aver SpO2 (%) | 92 (88.5–93) | 89 (87–91.8) | 0.017 |
| Min SpO2 (%) | 74.5 ± 13.9 | 68 ± 11.5 | 0.018 |
| T < 90% (%) | 22.7 (5.4–43.8) | 45.1 (22.3–64.9) | 0.050 |
| Arousal Index | 31.5 (13.9–79.1) | 44.6 (34.6–66.7) | 0.155 |
| Sleep Efficiency (%) | 87.7 (80.1–91.8) | 87.2 (76–93.4) | 0.293 |
| ESS Score | 10 (6–12.5) | 10 (8–16) | 0.326 |
AHI: Apnoea hypopnoea index, Aver SpO2: Average oxyhaemoglobin saturation, ESS: Epworth sleepiness scale, Min SpO2: Minimum oxyhaemoglobin saturation, N1: Sleep stage 1, N2: Sleep stage 2, N3: Sleep stage 3, REM: Rapid eye movement, TST: Total sleep time, T < 90%: Time with oxyhaemoglobin saturation <90%.