Table 2.

Best cut-off values of sTREM-1 that were obtained from ROC curves for VAP diagnosis.

Variables	AUC	95% CI	Cut-off (pg/mL)	Sensitivity%	Specificity%
sTREM-1 in serum	0.528	0.438～0.617	358.93	72.4	46.2
sTREM-1 in ETA	0.551	0.461～0.638	641.94	85.5	28.8
sTREM-1 in BALF	0.831	0.755～0.892	23.61	85.5	73.1
sTREM-1 in EBC	0.752	0.668～0.824	0.32	100	48.1

AUC = area under the curve.