Platelet to Lymphocyte Ratio Associated with Prolonged Hospital Length of Stay Postpeptic Ulcer Perforation Repair: An Observational Descriptive Analysis

Table 4

Discriminatory power analysis of preoperative laboratory results for the determination of prolonged hospital length of stay.

Variables	AUC	value	Cutoff value	Sensitivity	Specificity	Positive predictive value	Negative predictive value	Positive likelihood ratio	Negative likelihood ratio	Accuracy
Lymphocyte count	0.331	0.012	0.75	50% (28.2-71.8)	28.9% (21.2-37.6)	10.8% (7.3-15.7)	77.1% (67-84.7)	0.7 (0.5-1.1)	1.73 (1.1-2.9)	32% (24.6-40.1)
Neutrophil to lymphocyte ratio	0.499	0.987	10.85	50% (28.2-71.8)	50.8% (41.8-59.7)	14.9% (10-21.6)	85.5% (79-90.1)	1.02 (0.7-1.6)	0.98 (0.6-1.6)	50.7% (42.4-58.9)
Platelet to lymphocyte ratio	0.702	0.003	311.18	68.2% (45.1-86.1)	68% (59.2-75.9)	26.8% (20-34.9)	92.6% (87-95.9)	2.1 (1.5-3.1)	0.5 (0.3-0.9)	68% (59.9-75.4)

AUC: area under the curve.