Comparing Different Recording Lengths of Dynamic Cerebral Autoregulation: 5 versus 10 Minutes

Table 3

The accuracy of identifying stroke patients in all subjects in the first 5 mins and 10 mins of recordings.

All subjects ()	Area under the ROC curve (95% confidence interval)
	5 mins	10 mins
	0.714 (0.607–0.805)	0.719 (0.613–0.810)
Phase shift (degree)
VLF (0.02–0.07 Hz)	0.707 (0.600–0.799)	0.716 (0.610–0.807)
LF^† (0.07–0.20 Hz)	0.557 (0.439–0.670)	0.568 (0.450–0.681)
HF^† (0.20–0.50 Hz)	0.507 (0.391–0.622)	0.510 (0.395–0.625)
Gain (cm/s/mmHg)
VLF (0.02–0.07 Hz)	0.531 (0.422–0.638)	0.548 (0.438–0.654)
LF^† (0.07–0.20 Hz)	0.560 (0.443–0.673)	0.511 (0.395–0.626)
HF^† (0.20–0.50 Hz)	0.599 (0.481–0.708)	0.503 (0.388–0.619)

AUC = 0.5; all areas under the ROC curves were not significantly different between 5 mins and 10 mins; .