Measurement of hepatic functional mass by means of 13C-methacetin and 13C-phenylalanine breath tests in chronic liver disease: Comparison with Child-Pugh score and serum bile acid levels

Figure 3 Area under the receiver operating characteristic (ROC) curves compared to the methacetin and phenylalanine breath tests between control subjects and liver disease patients as well as between chronic hepatitis and Child-Pugh A cirrhosis patients. A: Area under the receiver operating characteristic (ROC) curves compared to methacetin and phenylalanine breath tests between control subjects and liver disease patients. --M60 = cumulative percent oxidation of methacetin at 60 mins; -P60 = cumulative percent oxidation of phenylalanine at 60 min; B: Area under the receiver operating characteristic (ROC) curves compared to methacetin and phenylalanine breath tests between chronic hepatitis and Child-Pugh A liver cirrhosis patients. -M60 = cumulative percent oxidation of methacetin at 60 mins; --P60 = cumulative percent of oxidation of phenylalanine at 60 mins.