TABLE 1.

Baseline characteristics of study patients.

Variable	All patients No. = 98
Age (years)
Mean (SD)	65.4 (SD 13.3)
Gender
Male	64 (65.3%)
Female	34 (34.7%)
Smoking
Yes	56 (55.4%)
No	45 (44.6%)
Alcohol
Yes	40 (39.6%)
No	61 (60.4%)
Tumor subsite
Oral tongue	41 (41.8%)
Floor of mouth	32 (32.7%)
Upper/lower gum	17 (17.3%)
Other	8 (8.2%)
T category
pT1/pT2	56 (57.1%)
pT3/pT4	42 (42.9%)
N category
pN0	49 (50.0%)
pN+	49 (50.0%)

No., number and SD, standard deviation.