Table 4 Sleep efficiency index from PSG and our methods
From: Sleep/wake estimation using only anterior tibialis electromyography data
Subject # (symptom) | PSG S.E. (%) | Estimated S.E. (%) | Absolute difference | Relative difference (%) |
|---|---|---|---|---|
1 (N) | 98.2 | 97.5 | 0.7 | 0.7 |
2 (N) | 97.3 | 96.9 | 0.4 | 0.4 |
3 (N) | 97.8 | 97.0 | 0.9 | 0.9 |
4 (N) | 96.3 | 96.3 | 0.0 | 0.0 |
5 (N) | 97.2 | 98.4 | 1.2 | 1.3 |
6 (N) | 97.4 | 97.6 | 0.2 | 0.2 |
7 (N) | 98.9 | 98.5 | 0.4 | 0.4 |
8 (O) | 98.1 | 98.2 | 0.1 | 0.1 |
9 (O) | 98.8 | 97.8 | 0.9 | 1.0 |
10 (P) | 94.1 | 96.6 | 2.5 | 2.7 |
11 (P) | 97.9 | 97.5 | 0.5 | 0.5 |
12 (P) | 98.2 | 97.0 | 1.2 | 1.2 |
Mean(SD) | 97.5 (1.3) | 97.4 (0.7) | 0.8 (0.7) | 0.8 (0.7) |