Table 1.
Descriptive statistics of stage I video polysomnography (vPSG) parameters (N = 19).
| Parameter | Mean | Median | Minimum | Maximum | 5th Percentile | 95th Percentile | Standard Deviation |
|---|---|---|---|---|---|---|---|
| BEI (/h) | 6.64 | 6.60 | 4.30 | 10.20 | 4,30 | 10.20 | 1.75 |
| BBI (/h) | 6.74 | 5.70 | 2.00 | 15.80 | 2.00 | 15.80 | 3.77 |
| Apnea to bruxism (/h) | 0.98 | 0.80 | 0.00 | 3.70 | 0.00 | 3.70 | 0.97 |
| Arousal to bruxism (/h) | 2.28 | 2.10 | 0.20 | 5.50 | 0.20 | 5.50 | 1.44 |
| Phasic bruxism (/h) | 4.23 | 4.50 | 0.10 | 8.00 | 0.10 | 8.00 | 2.12 |
| Tonic bruxism (/h) | 1.55 | 1.20 | 0.00 | 4.10 | 0.00 | 4.10 | 1.15 |
| Mixed bruxism (/h) | 0.96 | 0.90 | 0.10 | 1.90 | 0.10 | 1.90 | 0.54 |
| AHI (/h) | 2.45 | 2.20 | 0.50 | 6.60 | 0.50 | 6.60 | 1.63 |
| ODI (/h) | 2.58 | 2.10 | 0.10 | 6.90 | 0.10 | 6.90 | 1.90 |
| Snore (%) | 4.95 | 0.20 | 0.00 | 46.80 | 0.00 | 46.80 | 11.86 |
| TST (m) | 446.63 | 449.00 | 374.50 | 541.50 | 374.50 | 541.50 | 37.96 |
| SL (m) | 22.35 | 17.80 | 0.90 | 66.90 | 0.90 | 66.90 | 18.74 |
| REML (m) | 93.16 | 68.50 | 5.00 | 232.50 | 5.00 | 232.50 | 56.96 |
| WASO (m) | 23.18 | 15.50 | 0.00 | 84.30 | 0.00 | 84.30 | 22.39 |
| SE (%) | 88.72 | 90.30 | 73.60 | 99.00 | 73.60 | 99.00 | 6.89 |
| N1 (%) | 3.00 | 2.80 | 0.70 | 8.40 | 0.70 | 8.40 | 2.02 |
| N2 (%) | 45.16 | 47.20 | 23.30 | 61.30 | 23.30 | 61.30 | 10.07 |
| N3 (%) | 24.82 | 22.80 | 10.70 | 39.90 | 10.70 | 39.90 | 8.05 |
| REM (%) | 27.05 | 26.80 | 19.80 | 36.60 | 19.80 | 36.60 | 4.41 |
| Arousals (/h) | 4.77 | 4.10 | 0.40 | 12.60 | 0.40 | 12.60 | 3.55 |
| Average SpO2 (%) | 95.33 | 95.80 | 92.20 | 96.60 | 92.20 | 96.60 | 1.27 |
| Minimal SpO2 (%) | 88.47 | 91.00 | 64.00 | 96.00 | 64.00 | 96.00 | 7.51 |
| SpO2 < 90% (%) | 0.92 | 0.00 | 0.00 | 11.30 | 0.00 | 11.30 | 2.61 |
| Average desaturation drop (%) | 3.35 | 3.30 | 2.60 | 4.00 | 2.60 | 4.00 | 0.33 |
| Average pulse (bpm) | 61.41 | 58.90 | 50.90 | 78.10 | 50.90 | 78.10 | 8.26 |
| Maximal pulse (bpm) | 100.16 | 99.00 | 78.00 | 180.00 | 78.00 | 180.00 | 21.53 |
| Minimal pulse (bpm) | 49.42 | 47.00 | 38.00 | 68.00 | 38.00 | 68.00 | 7.81 |
BEI—bruxism episode index, BBI—bruxism burst index, AHI—apnea/hypopnea index, ODI—oxygen desaturation index, TST—total sleep time, SL—sleep latency, REML—rapid eye movement latency, WASO—wake after sleep onset, SE—sleep efficiency, N1—non-rapid eye movement 1, N2—non-rapid eye movement 2, N3—non-rapid eye movement 3, REM—rapid eye movement, /h—per hour of sleep, m—minutes, bpm—beats per minute.