Table 2.

Operative data, pathological assessment, and adjuvant treatment details.

KERRYPNX		n	%
Type of surgery	Elective surgery	1485	76.2
	Emergency surgery	465	23.9
Surgical procedure	Right hemicolectomy	802	41.3
	Left hemicolectomy	235	12.1
	Sigmoidectomy	572	29.5
	Hartmann’s surgery	136	7
	Others	195	10
Histological type	Adenocarcinoma	1728	88.6
	Signet ring cell/mucinous carcinoma	222	11.4
Differentiation grade	G1	865	45.5
	G2	680	35.8
	G3	357	18.8
Affected margins		221	11.3
Perineural invasion		708	36.9
Vascular invasion		822	42.8
Lymphatic invasion		876	45.8
Tumor perforation		261	13.4
T4a category		1487	76.3
N category	N0	717	36.8
	N1	700	35.9
	N2	533	27.3
M1c		120	6.1
Stage	II	626	32.3
	III	944	48.7
	IV	369	19
Adjuvant chemotherapy		1396	71.8