Table 1.

Characteristics of patients available for analysis

	Pre-operative RT n = 98	Post-operative RT n = 111	Total n = 209
Mean age (range)	65 (31–84)	64 (23–84)	65 (23–84)
Female/male No. (%)	32 (33)/66 (67)	43 (39)/68 (61)	75 (36)/134 (64)
Primary site No. (%)
Tongue/floor of mouth	66 (67)	79 (71)	145 (69)
Gingiva and other oral subsites	32 (33)	32 (29)	64 (31)
Clinical stage No. (%)
I + II	49 (50)	56 (50)	105 (50)
III + IVA	49 (50)	55 (50)	104 (50)
Smoker No. (%)
No (never)	35 (36)	49 (44)	84 (40)
Yes (active or previous)	62 (63)	62 (56)	124 (59)
Unknown	1 (1)	0 (0)	1 (< 1)

RT radiotherapy