Table 1 Patient characteristics ( n  = 239)

Sex (n (%))

Male

131 (55)

Female

108 (45)

Age (mean (range, SD))

66.7 (23 to 87, 10.3)

Tumor location (n (%))

Colon

147 (62)

Rectum

92 (38)

Depth (n (%))

pT2

63 (26)

pT3

176 (74)

Lymph node involvement (n (%))

pN0

146 (61)

pN1

75 (31)

pN2

18 (8)

Total number of retrieved lymph nodes (mean (range, SD))

15.6 (0 to 61, 9.77)

Lymphatic permeation (n (%))

Positive

138 (58)

Negative

101 (42)

Venous infiltration (n (%))

Positive

127 (53)

Negative

112 (47)

Adjuvant chemotherapy (n (%))

With

119 (50)

Without

96 (40)

Unknown

24 (10)

PDCs grade (n (%))

G1

140 (59)

G2

46 (19)

G3

53 (22)