Table 1

Extramural venous invasion (EVI) and metachronous metastasis status (M), according to the clinicopathological characteristics for patients with stage II colorectal carcinoma (%)

CharacteristicEVI–M0 (n=28)EVI+M0 (n=37)EVI–M1 (n=1)EVI+M1 (n=13)
Age (years)
 <6814 (50)20 (54)1 (100)6 (46)
 ≥6814 (50)17 (46)0 (0)7 (54)
Gender
 Male13 (47)18 (49)1 (100)9 (70)
 Female15 (53)19 (51)0 (0)4 (30)
Tumour differentiation
 Well/moderate23 (82)33 (89)1 (100)12 (92)
 Poor5 (18)4 (11)0 (0)1 (8)
T-stage
 pT326 (93)33 (89)0 (0)12 (92)
 pT42 (7)4 (11)1 (100)1 (8)
Localisation
 Colon22 (79)25 (68)1 (100)7 (54)
 Rectum6 (21)12 (32)0 (0)6 (46)
Adjuvant chemotherapy
 No19 (68)18 (49)0 (0)6 (46)
 Yes7 (25)18 (49)0 (0)5 (38)
 Unknown2 (7)1 (2)1 (100)2 (16)
Lymph nodes
 <129 (32)14 (38)0 (0)5 (39)
 ≥1219 (68)23 (62)1 (100)8 (61)
Tumour manifestation
 Circumferential6 (21)14 (38)0 (0)7 (54)
 Focal22 (79)23 (62)1 (100)6 (46)
Metastasis
 No28 (100)37 (100)0 (0)0 (0)
 Yes0 (0)0 (0)1 (100)13 (100)