Table III.

ROC analysis of differential proteins in the diagnosis of GBS.

Indicator	Accuracy (AUC)	95% CI	P-value	Sensitivity	Specificity	Critical value (µg/l)
Haptoglobin	0.835	0.807–0.896	0.015	86.7	88.2	66.5
Cystatin C	0.827	0.805–0.912	0.022	85.5	89.7	32.3
Heat shock protein 70	0.841	0.822–0.954	0.006	87.8	92.3	95.2

ROC, receiver operating characteristic; GBS, Guillain-Barré syndrome; AUC, area under the curve.