Prognostic value of 13C-phenylalanine breath test on predicting survival in patients with chronic liver failure

Figure 1 (ROC) curve for percentage of ¹³C-phenylalanine oxidation in predicting mortality (The optimal cut off point with the highest sensitivity and specificity for survival in 118 patients with chronic liver failure was 5. 0%).

Figure 2 Kaplan-Meier statistics for survival probability. A: All patients; B: Percentage of ¹³C-phenylanine oxidation; C: Percentage of ¹³C-phenylanine oxidation adjusted for covariables (age < 60 years and ≥ 60 years, albumin, total bilirubin and creatinine). P values are given by nonparametric log-rank test.

Figure 3 (ROC) curve for percentage of ¹³C-phenylalanine oxidation and percentage of ¹³C-phenylalanine oxidation adjusted for age (age < 60 years and ≥ 60 years), albumin, total bilirubin and creatinine in predicting mortality (n = 118).