Fig. 3

Survival curves and risk tables of for early recurrence patients by long- and short-interval follow-up. a Overall survival (OS) for the 401 early recurrence patients. The 3- and 5-year OS rates were 59.9% and 42.2%, respectively, in the long-interval group and 71.1% and 51.5%, respectively, in the short-interval follow-up group. b OS for the 235 low-risk patients. The 3- and 5-year OS rates were 66.6% and 46.3%, respectively, in the long-interval group and 73.5% and 55.6%, respectively, in the short-interval follow-up group. c OS for the 166 high-risk patients. The 3- and 5-year OS rates were 48.3% and 36.2%, respectively, in the long-interval group and 67.6% and 44.1%, respectively, in the short-interval follow-up group. Solid curves = survival curves; dashed curves = 95% confidence intervals