Table 3 Overall agreement rates, sensitivity, and specificity for sleep/wake states before and after the application of optimization rules
From: Validity of an algorithm for determining sleep/wake states using a new actigraph
Before optimizationa | After optimizationa | t | p | ||
|---|---|---|---|---|---|
Agreement rates (%) | Overall | 85.0 ± 2.0 | 88.4 ± 2.1 | -6.087 | <0.001 |
Stage W | 65.4 ± 4.7 | 56.5 ± 5.1 | 2.814 | 0.008 | |
Stage 1 | 65.4 ± 4.1 | 77.1 ± 3.9 | -5.615 | <0.001 | |
Stage 2 | 92.4 ± 1.2 | 96.2 ± 0.9 | -7.159 | <0.001 | |
Stage 3 + 4 | 98.6 ± 0.5 | 99.4 ± 0.4 | -3.128 | 0.004 | |
Stage REM | 83.3 ± 3.2 | 90.3 ± 2.8 | -6.651 | <0.001 | |
Sensitivity (%) | 89.1 ± 1.6 | 93.7 ± 1.4 | -8.816 | <0.001 | |
Specificity (%) | 65.4 ± 4.7 | 56.5 ± 5.1 | 2.814 | 0.008 |