Table 4.
Sleep and respiratory parameters in the BEI ≤ 4/h and >4/h groups.
| Mean ± SD | |||
|---|---|---|---|
| BEI | ≤4/h | >4/h | p Value |
| (n = 49) | (n = 34) | ||
| AHI (n/h) | 3.84 ± 6.86 | 7.66 ± 12.25 | p > 0.05 |
| (1.89–5.79) | (3.38–11.93) | ||
| ODI (n/h) | 3.33 ± 5.75 | 7.53 ± 11.08 | p < 0.005 * |
| (1.69–4.97) | (3.66–11.40) | ||
| Snore (% of TST) | 6.66 ± 12.43 | 9.45 ± 17.84 | p > 0.05 |
| (3.13–10.19) | (3.23–15.68) | ||
| TST (min) | 415.02 ± 66.60 | 434.68 ± 41.47 | p > 0.05 |
| (396.10–433.95) | (420.21–449.15) | ||
| SL (min) | 21.05 ± 23.68 | 22.34 ± 16.71 | p > 0.05 |
| (14.33–27.78) | (16.50–28.17) | ||
| REML (min) | 107.28 ± 73.46 | 101.42 ± 48.67 | p > 0.05 |
| (86.41–128.16) | (84.44–118.41) | ||
| WASO (min) | 36.85 ± 35.10 | 31.08 ± 23.85 | p > 0.05 |
| (26.88–46.83) | (22.75–39.40) | ||
| SE (%) | 85.28 ± 11.89 | 88.11 ± 6.17 | p > 0.05 |
| (81.90–88.66) | (85.95–90.26) | ||
| N1 (% of TST) | 4.22 ± 3.48 | 6.08 ± 4.19 | p < 0.05 * |
| (3.23–5.21) | (4.61–7.54) | ||
| N2 (% of TST) | 52.03 ± 8.79 | 49.87 ± 5.96 | p > 0.05 |
| (49.54–54.53) | (47.79–51.95) | ||
| N3 (% of TST) | 22.78 ± 6.35 | 19.74 ± 6.07 | p < 0.05 * |
| (20.98–24.59) | (17.62–21.86) | ||
| R (% of TST) | 20.96 ± 5.05 | 24.32 ± 4.65 | p < 0.05 * |
| (19.52–22.39) | (22.70–25.95) | ||
| ArI (n/h) | 4.03 ± 2.97 | 7.77 ± 4.68 | p < 0.001 * |
| (3.19–4.88) | (6.13–9.40) | ||
| OAI (n/h) | 0.22 ± 0.66 | 1.09 ± 3.84 | p > 0.05 |
| (0.03–0.40) | (0.25–2.42) | ||
| MAI (n/h) | 0.01 ± 0.06 | 0.02 ± 0.10 | p > 0.05 |
| (0.00–0.03) | (0.01–0.06) | ||
| CAI (n/h) | 0.25 ± 0.49 | 0.27 ± 0.39 | p > 0.05 |
| (0.11–0.39) | (0.14–0.41) | ||
| Mean SpO2 (%) | 94.97 ± 1.33 | 94.53 ± 2.23 | p > 0.05 |
| (94.59–95.34) | (93.76–95.31) | ||
| Min. SpO2 (%) | 89.88 ± 6.25 | 87.24 ± 7.60 | p > 0.05 |
| (88.11–91.65) | (84.58–89.89) | ||
| SpO2 < 90% (%) | 0.54 ± 2.70 | 1.79 ± 3.84 | p > 0.05 |
| (0.23–1.30) | (0.45–3.12) | ||
| Mean desat. (%) | 3.01 ± 0.67 | 3.49 ± 0.69 | p < 0.05 * |
| (2.82–3.20) | (3.24–3.74) | ||
| Mean Pulse (bpm) | 61.71 ± 8.84 | 61.61 ± 6.90 | p > 0.05 |
| (59.17–64.26) | (59.20–64.02) | ||
AHI: apnea–hypopnea index, ODI: oxygen desaturation index, TST: total sleep time, SL: sleep latency, REML: REM latency, WASO: wake after sleep onset, SE: sleep efficiency, N1: non-REM sleep stage 1, N2: non-REM sleep stage 2, N3: non-REM sleep stage 3, R: rapid eye movement sleep stage, ArI: arousal index, OA: oral sleep apnea, MA: mixed sleep apnea, CA: central sleep apnea, mean SpO2: mean oxygen saturation, Min. SpO2: minimal oxygen saturation, Mean desat.: mean desaturation; * p statistically significant. Data format: mean ± standard deviation (95% confidence interval).