Table 1.

Patient background by recurrence and non-recurrence groups

Recurrence		Recurrence	Non-recurrence
Age, mean (years)		51 ≦ Age ≦ 80 (66)	40 ≦ Age ≦ 85 (67)
Sex	Male	16	22
	Female	2	11
pTNM stage	Stage 0, n(%)	0 (0)	5 (15.2)
	Stage IA, n(%)	2 (11.1)	11 (33.3)
	Stage IB, n(%)	1 (5.6)	2 (6.1)
	Stage IIA, n(%)	1 (5.6)	2 (6.1)
	Stage IIB, n(%)	2 (11.1)	9 (27.3)
	Stage IIIA ,n(%)	2 (11.1)	2 (6.1)
	Stage IIIB ,n(%)	5 (27.8)	2 (6.1)
	Stage IIIC ,n(%)	2 (11.1)	0 (0)
	Stage IV ,n(%)	3 (16.7)	0 (0)
Complications		11	30