Table 2.

Area under the receiver operating curve for the association between baseline biomarkers and severe leptospirosis.

Parameters	AUC ROC	SE	p value	95% CI	Cut-off	Sensitivity	Specificity
Leptospiremia	0.61	0.04	0.010*	0.52–0.70	953	0.59	0.67
MAT titer	0.40	0.20	0.594	0.00–0.80	600	0.83	0.25
NGAL	0.75	0.04	< 0.001	0.67–0.82	360	0.62	0.78
IL-6	0.75	0.04	< 0.001	0.67–0.82	121	0.64	0.74

AUC/ROC area under curve of receiver operating curve, SE standard error, CI confidence interval, Sens sensitivity, Spec specificity, pNGAL plasma neutrophil gelatinase-associated lipocalin, IL-6 interleukin 6, MAT microscopic agglutination test.