Clinicopathological characterization of colorectal cancer patients (n = 73)

Variables	n	%
Gender
Male	34	46.6
Female	39	53.4
Age, years
≤45	13	17.8
>45	60	82.2
Tumor location
Colon	37	50.5
Rectum	36	49.5
Tumor side
Right	18	24.7
Left	55	75.3
Histological type*
Mucinous	11	15.3
Non-mucinous	61	84.7
Degree of differentiation*
Less/moderately differentiated	62	86.1
Well-differentiated	10	13.9
Angiolymphatic and/or perineural invasion*
Absent	28	38.9
Present	44	61.1
Lymph node status*
Positive	28	38.9
Negative	44	61.1
Tumor staging*
I	13	18.1
II	24	33.4
III + IV	35	48.5
Size of the tumor, cm
1	2	2.7
2	14	19.2
3	42	57.5
4	15	20.5
Type of surgery*
Elective	59	81.9
Emergency	13	18.1

*Variables with 72 cases instead of 73 because medical record of a patient did not have complete data.