Table 2.

Clinical features of colorectal cancers with and without pathological metastasis

TotalColorectal cancers with metastasisColorectal cancers without metastasis
Characteristicn = 201n = 26n = 175P-value
Age (years)
 ≧65140 (70)17 (12)123 (88)0.650
 <6561 (30)9 (15)52 (85)
Sex
 Male106 (53)14 (13)92 (87)1.000
 Female95 (47)12 (13)83 (87)
Locationa
 Proximal139 (70)16 (12)123 (88)0.488
 Distal59 (30)9 (15)50 (85)
Histology
 Adenocarcinoma (Well/moderate)166 (83)25 (15)141 (85)0.086
 Mucinous adenocarcinoma33 (17)1 (3)32 (97)
TET1 methylation
 Positive67 (33)4 (6)63 (94)0.045
 Negative134 (67)22 (16)112 (84)
hMLH1 methylation
 Positive76 (38)6 (8)70 (92)0.129
 Negative125 (62)20 (16)105 (84)
TET1 plus hMLH1 methylation
 Positive43 (21)0 (0)43 (100)0.002
 Negative158 (79)26 (16)132 (84)
  • Values in parentheses indicate percentages.

  • aProximal, cecum, ascending and transverse colon; Distal, descending and sigmoid colon and rectum.