Figure 5.
Recurrence-free survival according to p-Stage and presence of tumor vessel invasion (TVI). A) Comparison of IA(−) (n = 243), IA(+) (n = 56), and IB (n = 168). B) Comparison of IA(−) (n = 243), IA(+) (n = 56), IB(−) (n = 103), and IB(+) (n = 65). Five-year recurrence-free survival rate (%): IA(−), 97.9%; IA(+), 79.7%; IB, 81.3%; IB(−), 81.3%; and IB(+), 67.7%.