Table 5.

Receiver operating characteristics (ROC) analysis.

	CSF IL-6 peak		CSF IL-6 day 4–14 peak
	DCI	Infarction	DCI	Infarction
AUC (95% CI)	0.657 (0.531–0.783)	0.718 (0.579–0.856)	0.658 (0.530–0.787)	0.747 (0.615–0.879)
	P = 0.021	P = 0.003	P = 0.020	P = 0.001
Optimal cut-off	25,138	44,558	23,824	44,558
Sensitivity	56%	46%	56%	46%
Specificity	74%	94%	79%	98%

AUC area under the curve, CI confidence interval, CSF cerebrospinal fluid, DCI delayed cerebral ischemia/infarction.