Table 3. Treatment management.

			Survival rate at 5 years	Overall survival	Disease free survival rate at 5 years	Disease free survival
Categories	n	%	%	p	%	p
Surgery				0.01		0.03
Performed	84	96.5
Not performed	3	3.4
Margin status				0.08		0.26
R0	37	42.5	78.3		81.5
R1	31	35.6	77.4		79.1
R2	16	18.3	68.7		72.8
N/A	3	3.4	66.6		33.3
Radiation treatment				0.01		0.31
Yes	17	19.5	64.1		67.2
No	70	80.4	80.0		83.6
Chemotherapy				0.74		0.65
Performed	3	3.4	66.6		70.2
Not performed	84	96.5	76.1		81.5
N/A: Patients followed-up without surgical intervention.