Fig. 4

Incidence of minimal MHE by sex (a, b) and age (c, d). In cases with lower SMI or PMI, incidence of minimal hepatic encephalopathy tended to be higher than in cases above the cut-off, although the difference was not significant (a, b). In patients less than 80 years old, incidence of minimal hepatic encephalopathy was significantly higher in cases with lower SMI or PMI than in cases with them above the cut-off. In patients more than 80 years old, no difference was seen between below and above the cut-off (c, d)