Table 4.

Receiver operating curve analysis

Variable	Sensitivity	Specificity	AUC (95%CI)	P value
Original cohort
PAR	60.3	74.3	0.726 (0.714–0.739)
NLR	12.3	90.8	0.504 (0.486–0.519)	< 0.001
PLR	37.5	76.6	0.603 (0.589–0.616)	< 0.001
MLR	28.2	74.3	0.501 (0.488–0.515)	< 0.001
SII	43.4	79.5	0.615 (0.601–0.628)	0.004
Validation cohort
PAR	70.7	69.7	0.744 (0.722–0.766)
NLR	48.3	56.4	0.507 (0.485–0.529)	< 0.001
PLR	80.4	28.6	0.602 (0.580–0.624)	< 0.001
MLR	54.0	48.6	0.503 (0.481–0.525)	< 0.001
SII	49.3	62.2	0.507 (0.485–0.529)	< 0.001

PAR, platelet to serum albumin ratio, NLR, neutrophil-lymphocyte ratio, PLR, platelet-lymphocyte ratio, MLR, monocyte-lymphocyte ratio, SII, systemic immune-inflammation index, area under the receiver operating curve