Table 2

Associations between BRAF mutation and molecular features of colorectal cancer.

Feature (n) a
BRAF wild-type (%)
BRAF mutation (%)
P

Total (275)
252 (92)
23 (8)





MSI



     negative (204)
195 (96)
9 (4)

     positive (31)
19 (61)
12 (39)
<0.0001




Methylation status



     CIMP- (150)
145 (97)
5 (3)

     CIMP+ (42)
31 (74)
11 (26)
<0.0001




     MLH1 distal region



     Negative (168)
159 (95)
9 (5)

     Positive (24)
17 (71)
7 (29)
<0.0001




     MLH1 proximal region



     Negative (179)
169 (94)
10 (6)

     Positive (13)
7 (54)
6 (46)
<0.0001




KRAS



     Wild-type (156)
134 (86)
22 (14)

     Mutant (93)
93 (100)
0 (0)
<0.0001




TP53



     Wild-type (183)
166 (91)
17 (9)

     Mutant (66)
62 (94)
4 (6)
NS

a Data was unavailable for MSI status in 40 cases, methylation status in 83 cases, KRAS mutation in 26 cases and TP53 mutation in 26 cases

Qi Li et al. Molecular Cancer 2006 5:2   doi:10.1186/1476-4598-5-2