Laboratory markers to identify acute histological chorioamnionitis in febrile parturients undergoing epidural analgesia: a retrospective study

Table 2 Diagnostic indices, predictive values, and likelihood ratios of laboratory indicators cutoffs for the identification of acute HCA

Explanatory Variables	Sensitivity	Specificity	Positive predictive value	Negative predictive value	Positive LR	Negative LR
CRP ≥ 6.9 mg/L	0.695	0.529	92.62%	16.98%	1.476	0.577
CRP ≥ 6.9 mg/L	(1104/1588)	(99/187)	(1104/1192)	(99/583)	1.476	0.577
NLR ≥ 11.93	0.499	0.668	92.74%	13.57%	1.503	0.582
NLR ≥ 11.93	(792/1588)	(125/187)	(792/854)	(125/921)	1.503	0.582
MLR ≥ 0.57	0.668	0.567	53.51%	16.72%	1.543	0.586
MLR ≥ 0.57	(1060/1588)	(106/187)	(1060/1981)	(106/634)	1.543	0.586

HCA, histological chorioamnionitis; CRP, C-reactive protein; NLR, neutrophil-lymphocyte ratio; MLR, monocyte-lymphocyte ratio; LR, likelihood ratio

ISSN: 1471-2393