Fig. 3.
Comparison of survival rates after propensity-score matching between patients under 6-monthly surveillance 1 year after curative treatment and those under 3-monthly surveillance. (A) The cumulative survival rates of low-risk patients under 6-monthly surveillance 1 year after curative treatment were not significantly different from those under 3-monthly surveillance (p=0.17). (B) The cumulative survival rates of high-risk patients under 3-monthly surveillance were significantly higher than those of high-risk patients under 6-monthly surveillance 1 year after curative treatment (p=0.04).