Table 2.
Differences in sleep structure, respiratory parameters and sat02 between the group of children with epileptic encephalopathies and the control group.
| V-PSG parameter | Children with EE (N=31) Median (IQR) |
Control group (N=31) Median (IQR) |
Mann Whitney U test | |
|---|---|---|---|---|
| U | p-Value | |||
| TRT (min) | 462.00 (432.50–499.25) | 486.00 (460.25–506.25) | 364.00 | 0.101 |
| TST (min) | 395.00 (326.25–429.25) | 414.00 (395.25–432.75) | 333.50 | 0.038 |
| SE (%) | 82.99 (70.81–88.90) | 87.30 (81.70–90.74) | 369.00 | 0.116 |
| SL (min) | 27.00 (11.25–45.12) | 23.00 (11.25–43.00) | 459.00 | 0.761 |
| RL (min) | 124.00 (69.00–177.00) | 109.50 (74.00–147.00) | 392.00 | 0.391 |
| TWT (min) | 45.00 (17.25–74.50) | 24.00 (18.00–48.00) | 407.50 | 0.304 |
| Sleep efficiency (%) | 88.16 (77.65–96.46) | 93.08 (87.57–96.40) | 368.00 | 0.113 |
| N1% | 2.10 (1.10–3.08) | 1.40 (1.03–1.88) | 329.00 | 0.033 |
| N2% | 46.60 (31.53–53.98) | 43.10 (37.10–48.43) | 448.00 | 0.647 |
| N3% | 27.90 (17.55–44.70) | 31.60 (26.17–33.85) | 408.00 | 0.307 |
| REM% | 13.80 (8.40–16.78) | 19.80 (17.60–22.20) | 146.50 | P<0.0001 |
| Number of arousals (N) | 7.5 (3.00–10.00) | 8.00 (6.00–10.00) | 286.00 | 0.340 |
| Number of respiratory events (N) | 0.00 (0.00–1.75) | 1.00 (1.00–1.75) | 374.50 | 0.118 |
| Average duration of respiratory events (s) | 0.00 (0.00–10.00) | 10.00 (8.25–12.00) | 297.00 | 0.008 |
| Longest duration of respiratory events (s) | 0.00 (0.00–11.75) | 10.00 (8.25–12.00) | 343.50 | 0.048 |
| Apnea-Hypopnea Index (AHI) | 0.00 (0.00–0.26) | 0.15 (0.12–0.24) | 404.50 | 0.27 |
| Average sat02 (%) | 98.00 (97.00–98.00) 25.55* |
98.00 (98.00–99.00) 37.45* |
296.00 | 0.0061 |
| Miminum sat02 (%) | 91.00 (90.00–94.00) 23.40* |
93.00 (93.00–94.00) 39.59* |
229.50 | 0.0004 |
*
Average rank.