Table 2.
Results of the actometer on (a) night after daytime dialysis (displayed as median and interquartile difference) after 5 or 11 weeks (depending on the placebo-melatonin period) and (b) the following night without daytime dialysis (displayed as median and interquartile difference)
| Parameters | Normal values | Median (interquartile difference) Placebo | Median (interquartile difference) Melatonin |
|---|---|---|---|
| (a) | |||
| Sleep onset latency (min) | <15 | 44.5 (43.3)** | 15.5 (27.8)** |
| Sleep efficiency (%) | >85 | 67.3 (30.7)** | 73.1 (27.5)** |
| Actual awake time (%) | <10 | 20.0 (28.6) | 19.4 (13.6) |
| Actual sleep Time (min) | >350 | 376.7 (118.6)** | 387.5 (155.6)** |
| Fragmentation index | † | 4.5 (1.1)** | 3.1 (0.7)** |
| (b) | |||
| Sleep onset latency (min) | <15 | 36.0 (31.9)* | 28.5 (22.6)* |
| Sleep efficiency (%) | >85 | 65.0 (22.1)* | 69.2 (30.6)* |
| Actual awake time (%) | <10 | 24.8 (14.2) | 28.2 (23.7) |
| Actual sleep time (min) | >350 | 351.0 (119.7) | 386.8 (169.7) |
| Fragmentation index | † | 3.9 (1.3) | 3.0 (1.2) |
*
P < 0.10;
**
P < 0.05.
†
Normal values not known yet.