Figure 4

Overall survival (OS) curves of intravenous NAC group and regional arterial infusion NAC group.
There was no statistically significant difference between the two groups (P = 0.137). The 1-, 3- and 5-year OS rates were 84%, 65% and 41% in the intravenous NAC group and 89%, 71% and 53% in the regional arterial infusion NAC group.