Table 1 Accuracy of sleep/wake determination using the FS-750 actigraph
From: Validity of an algorithm for determining sleep/wake states using a new actigraph
Group Aa | Group Ba | t | p | ||
|---|---|---|---|---|---|
Agreement rates (%) | Overall | 84.7 ± 3.0 | 85.4 ± 2.8 | -0.157 | 0.876 |
Stage W | 66.0 ± 6.3 | 64.9 ± 7.1 | 0.114 | 0.910 | |
Stage 1 | 65.5 ± 6.5 | 65.2 ± 5.0 | 0.034 | 0.973 | |
Stage 2 | 91.5 ± 2.0 | 93.4 ± 1.2 | -0.791 | 0.435 | |
Stage 3 + 4 | 99.0 ± 0.6 | 98.2 ± 0.7 | 0.884 | 0.383 | |
Stage REM | 84.3 ± 5.3 | 82.4 ± 3.7 | 0.303 | 0.764 | |
Sensitivity (%) | 88.3 ± 2.8 | 90.0 ± 1.5 | -0.522 | 0.605 | |
Specificity (%) | 66.0 ± 6.3 | 64.9 ± 7.1 | 0.114 | 0.910 |