Table 4 Area under ROC curve and prediction probability (Pk) estimates for determining consciousness versus unconsciousness.
From: Peak and averaged bicoherence for different EEG patterns during general anaesthesia
Bifrequency region | Including eye blinks and burst suppression | Excluding eye blinks and burst suppression | ||
|---|---|---|---|---|
| Â | Area under ROC | P k | Area under ROC | P k |
Averages | Â | Â | Â | Â |
δ_δ | 0.799 (0.765-0.833) | 0.800 (0.766-0.834) | 0.859 (0.836-0.882) | 0.860 (0.838-0.883) |
δ_θ | 0.806 (0.767-0.844) | 0.804 (0.765-0.842) | 0.873 (0.849-0.896) | 0.871 (0.848-0.894) |
δ_α | 0.679 (0.637-0.721) | 0.679 (0.637-0.721) | 0.726 (0.690-0.762) | 0.726 (0.690-0.762) |
δ_β | 0.687 (0.646-0.728) | 0.639 (0.601-0.678) | 0.711 (0.672-0.751) | 0.659 (0.621-0.697) |
θ_θ | 0.660 (0.619-0.701) | 0.659 (0.618-0.700) | 0.709 (0.674-0.745) | 0.708 (0.673-0.744) |
θ_α | 0.634 (0.592-0.676) | 0.630 (0.589-0.672) | 0.668 (0.630-0.707) | 0.664 (0.626-0.703) |
θ_β | 0.547 (0.504-0.589) | 0.540 (0.502-0.579) | 0.541 (0.499-0.584) | 0.539 (0.500-0.577) |
α_α | 0.649 (0.610-0.688) | 0.646 (0.607-0.684) | 0.660 (0.620-0.700) | 0.657 (0.617-0.696) |
α_β | 0.574 (0.535-0.613) | 0.578 (0.541-0.614) | 0.570 (0.530-0.309) | 0.577 (0.540-0.614) |
β_β | 0.640 (0.598-0.681) | 0.607 (0.571-0.643) | 0.638 (0.595-0.681) | 0.607 (0.569-0.645) |
Peaks | Â | Â | Â | Â |
δ_δ | 0.812 (0.777-0.848) | 0.808 (0.773-0.844) | 0.876 (0.854-0.898) | 0.871 (0.849-0.893) |
δ_θ | 0.826 (0.789-0.863) | 0.823 (0.786-0.860) | 0.892 (0.870-0.914) | 0.889 (0.867-0.911) |
δ_α | 0.688 (0.647-0.730) | 0.686 (0.645-0.727) | 0.739 (0.703-0.774) | 0.735 (0.700-0.771) |
δ_β | 0.658 (0.613-0.703) | 0.634 (0.592-0.677) | 0.685 (0.641-0.729) | 0.656 (0.613-0.698) |
θ_θ | 0.697 (0.659-0.735) | 0.697 (0.659-0.734) | 0.752 (0.721-0.783) | 0.751 (0.721-0.781) |
θ_α | 0.658 (0.617-0.699) | 0.650 (0.609-0.690) | 0.697 (0.660-0.735) | 0.687 (0.650-0.724) |
θ_β | 0.601 (0.558-0.644) | 0.589 (0.549-0.630) | 0.615 (0.571-0.659) | 0.603 (0.562-0.644) |
α_α | 0.654 (0.617-0.691) | 0.657 (0.620-0.693) | 0.672 (0.633-0.710) | 0.674 (0.635-0.712) |
α_β | 0.678 (0.639-0.717) | 0.654 (0.616-0.692) | 0.689 (0.649-0.729) | 0.665 (0.626-0.704) |
β_β | 0.513 (0.442-0.532) | 0.508 (0.467-0.550) | 0.491 (0.444-0.537) | 0.503 (0.460-0.546) |
BIS index | Â | Â | Â | Â |
| Â | 0.941 (0.921-0.961) | 0.935 (0.914-0.955) | 0.935 (0.913-0.957) | 0.928 (0.905-0.950) |