Table 2. Performance metrics at various neutrophil-to-lymphocyte ratio (NLR) cutoff values for predicting advanced stage (stages III and IV) breast cancer.

Baseline NLR cutoff	2.5 cut off value	3.0 cut off value	3.5 cut off value
True positive (TP)	19	7	12
True negative (TN)	4	28	12
False positive (FP)	31	7	23
False negative (FN)	2	14	9
Sensitivity	90.5%	33.3%	57.1%
Specificity	11.4%	80.0%	34.3%
Accuracy	41.1%	62.5%	42.9%
PPV	38.0%	50.0%	34.3%
NPV	66.7%	66.7%	57.1%
Youden’s J index	0.019	0.133	-0.086