Table 1.
Polysomnographic sleep measures.
| REM-D group | NREM-I group | Mixed ANOVA | |||||||
|---|---|---|---|---|---|---|---|---|---|
| BL | REM-D | REC | BL | NREM-I | REC | Group df = 1,17 | Night df = 2,34 | Interaction df = 2,34 | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | p (F) | p (F) | p (F) | |
| TST (min) | 446.3 (38.0) | 350.3 (47.0) | 447.2 (49.6) | 473.9 (55.4) | 426.2 (44.1) | 479.6 (57.4) | 0.02 (6.07) | 0.0001 (26.43) | n.s. |
| Stage 1/TST | 3.4 (1.6) | 10.5 (4.5) | 3.0 (1.2) | 2.6 (1.8) | 4.0 (1.6) | 4.8 (3.2) | 0.03 (5.15) | 0.0001 (13.59) | 0.0002 (12.15) |
| Stage 2/TST | 51.2 (5.8) | 61.9 (5.8) | 47.6 (5.6) | 56.9 (7.6) | 50.3 (4.5) | 53.8 (5.8) | n.s. | 0.02 (4.10) | 0.0001 (14.06) |
| Delta sleep/TST | 24.3 (6.8) | 23.5 (6.0) | 22.1 (4.6) | 20.7 (5.0) | 24.9 (5.2) | 16.4 (3.0) | n.s. | 0.01 (4.83) | n.s. |
| REM sleep/TST | 21.01 (3.7) | 4.03 (1.3) | 27.2 (3.5) | 19.8 (3.8) | 20.8 (2.9) | 25.1 (5.2) | 0.001 (15.66) | 0.0000 (89.29) | 0.0001 (53.56) |
| WASO/TST | 2.8 (2.8) | 19.7 (14.1) | 3.5 (4.9) | 2.2 (1.8) | 14.0 (5.2) | 2.9 (3.7) | n.s. | 0.0001 (29.20) | n.s. |
| Latency to REM (min) | 112.1 (31.9) | 96.7 (37.7) | 96.8 (35.1) | 81.9 (16.7) | 102.6 (24.3) | 79.9 (19.7) | n.s. | n.s. | n.s. |
REM-D, Rapid Eye Movement Sleep Deprivation; NREM-I, Non Rapid Eye Movement Sleep Interruptions; BL, base line night; REC, recovery night; TST, total sleep time (time from sleep onset to morning awakening after the time awake during the night is subtracted); Delta sleep refers to Stage 3 + Stage 4; REM, rapid eye movement sleep; WASO, wakefulness after sleep onset to morning awakening (TST plus wakefulness); p < 0.05.