TABLE 1.

Patient characteristics.

Characteristics	n = 112
Sex (male/female)	69/43
Age (years)	68 [59–77]
Tumor location	—
Tongue/gingival/oral floor/buccal/palate/lip	52/34/11/8/6/1
Classification	—
T1/T2/T3/T4	25/59/15/13
N0/N1/N2	69/19/24
Stage	—
Ⅰ/Ⅱ/Ⅲ/Ⅳ	21/36/21/34
Treatment	—
Surgery only/Surgery with RT/CT	66/46
Disease-specific survival (%)	88.1
Disease-free survival (%)	69.9
Overall survival (%)	79.7
Follow up duration	1335 [850–1825]

Continuous data are presented as the medians (interquartile range [IQR]). RT, radiation therapy; CT, chemotherapy.