Table 4. ROC curve for a cut-off value of 6.71.

	Diagnostic scan					ROC curve
	Cut-off	Sensitivity	Specificity	Positive predictive value	Negative predictive value	Area undercurve	95% CI	p
Postoperative NLR	≥6.71	67,71	73,91	91,55	35,42	0,693	0.567-0.819 0.001*
ROC: Receiver operating characteristics; CI: Confidence interval; NLR: Neutrophil-to-lymphocyte ratio; * 0.001 (ROC analysis).