Table 1.

Patients´ demographics and preoperative tumor characteristics.

		n	%
Age (Years) *		70.2	(SD 12.3)
Male		1115	57.2
ASA	I	85	4.4
	II	907	46.9
	III	846	43.8
	IV	95	4.9
BMI	<30	1217	77.2
	≥30	359	22.8
Asymptomatic		311	16
Symptomatology	Altered bowel transit	207	12.6
	Obstruction	484	29.5
	Constitutional syndrome	235	14.3
	Bleeding	396	24.2
	Others	317	19.3
Location	Right colon	851	43.6
	Left colon	1099	56.4
cT	T0–T1	85	4.4
	T2	114	5.8
	T3	641	32.9
	T4	1110	56.9
cN	N0	889	45.6
	N1	724	37.1
	N2	337	17.3
cM1		78	4

ASA: American Society of Anesthesiologist; BMI: body mass index. cT: clinical diagnosis for T stage. cN: clinical diagnosis for N stage. cM1: clinical diagnosis for M1 stage. * Data are expressed as mean and standard deviation.