From: Clinical outcomes for T1-2N0-1 oral tongue cancer patients underwent surgery with and without postoperative radiotherapy
Overall survival rate
Disease-free survival rate
HR
(95% CI)
p value
Grade (well vs. mod-poor)
6.93
(2.23-21.56)
0.001
4.16
(1.55-11.18)
0.005
Invasion depth (≤ 0.5 vs. > 0.5)
3.94
(1.39-11.14)
0.01
3.51
(1.31-9.46)
0.013