Table 1.
Polysomnographic Measures in the Two Groups
| SDis (n = 135) | No-SDis (n = 565) | p | |
|---|---|---|---|
| SL (min) | 33.1 ± 26 | 28.1 ± 23.5 | 0.041 |
| REML | 148.1 ± 59.6 | 164.2 ± 86.6 | 0.041 |
| TST (min) | 453.3 ± 44.6 | 453.7 ± 49.8 | NS |
| SE (%) | 85.8 ± 8 | 85.9 ± 8.6 | NS |
| Stage1 (%) | 3.3 ± 3 | 3.5 ± 3.3 | NS |
| Stage2 (%) | 48.7 ± 9.7 | 45.6 ± 11.6 | 0.002 |
| SWS (%) | 27.5 ± 8.8 | 31.1 ± 11.1 | ≤ 0.001 |
| REM (%) | 20.6 ± 5.4 | 19.9 ± 5.7 | NS |
| AHI | 0.72 ± 1.1 | 0.85 ± 1.7 | NS |
| Arousal Index | 3.4 ± 2.6 | 3.3 ± 2.6 | NS |
SDis, Sleep disturbance; No-SDis, No sleep disturbance; SL, Sleep latency; REML, REM latency; TST, Total sleep time; SE, Sleep efficiency; Stage 1, Stage 1 sleep; Stage 2, Stage 2 sleep; SWS, Slow wave sleep; REM, REM sleep; AHI, Apnea hypopnea index.