Method       Variable                 SD       P-Value       VA log(AST) -0.384 0.181 0.034   log(albumin) 6.455 0.554 <0.001   age 0.022 0.008 0.008   log(protime) 1.252          0.527 0.017       EL log(AST) 0.460 0.160 0.004   log(albumin) 5.970          0.506 < 0.001   age 0.021 0.007 0.003   log(protime) 1.656 0.462 < 0.001

Table 4: AFT model analysis of PBC data using validation set and estimated likelihood methods using the log-logistic regression model.