Table 2 Overall accuracy and comparative performance of Arc in detecting sleep/wake during the main sleep periods, in comparison to gold-standard determination of “sleep” and “wake” Actiwatch using the preset auto and low settings of the Actiwatch software
| Overall Accuracy | Sleep Sensitivity (wake specificity) | Sleep Specificity (wake sensitivity) | Wake Precision | |
|---|---|---|---|---|
| “Auto” setting | 99.0% ± 0.17% | 99.4% ± 0.19% | 84.5% ± 1.9% | 81.2% ± 2.3% |
| “Low” setting | 95.2% ± 0.36% | 95.7% ± 0.47% | 91.7% ± 0.60% | 83.6% ± 1.2% |