Fig 2. The prediction of ALF progression was analyzed with a receiver operating characteristic curve by using TB≥5×ULN, HBeAg negative and TB≥5×ULN plus HBeAg negative.The AUROC values were 0.756, 0.723 and 0.850, respectively.

AUROC: area under the receiver operating characteristic curve; ALF: acute liver failure; TB: total serum bilirubin; HBeAg: hepatitis B e-antigen. ULN: the upper limit of normal.