The cumulative survival rates were not significantly different between the two groups ( TACE-PEI group : 100 % , 80.8 % , and 40.4 % at 1 year , 3 years , and 5 years , respectively ; PEI alone group : 91.3 % , 65.9 % , and 37.7 % , respectively ; P = 0.458 ) .
