Table 3.

Variables and models of prediction for PALF.

Coefficient	Variable	Description	Not adjusted	CI95%	Model 1 (INR/ALT)	Model 2 (INR/TB)
${\beta }_0$		Intercept			-0.606	-2.277
		P value			0.486	0.016
${\beta }_1$	$x_1$	INR	0.746	(0.295; 1.197)	0.716	0.688
		P value	0.001		0.002	0.002
${\beta }_2$	$x_2$	ALT	-0.000391	(-0.0007; -0.00004)	-0.000459
		P value	0.029		0.051
${\beta }_3$	$x_3$	Total bilirrubin	0.081	(0.018; 0.143)		0.064
		P value	0.011			0.052
Area under the curve					0.8678	0.8840
Sensibility					97.92%	96.91%
Specificity					31.25%	37.50%
Positive predictive value					89.52%	90.38%
Negative predictive value					71.43%	66.67%
Accuracy					88.39%	88.50%
Hosmer-Lemeshow		Chi-square			6.362	17.505
		(P value)			0.607	0.025

CI95%, confidence interval of 95% for beta (β); ALT, alanine transaminase; TB, total bilirubin.