BPG is committed to discovery and dissemination of knowledge
Retrospective Cohort Study
©The Author(s) 2021.
World J Gastrointest Surg. Feb 27, 2021; 13(2): 164-175
Published online Feb 27, 2021. doi: 10.4240/wjgs.v13.i2.164
Table 3 Immunohistochemical and molecular phenotypes
Molecular or immunohistochemical featureCRC patients < 50 yr of age, n (%)CRC patients ≥ 50 yr of age, n (%)P value
Microsatellite stability
Stable56 (91.8)213 (84.9)0.21
Unstabile5 (8.2)38 (15.1)
NA990
KRAS mutation
Negative23 (65.7)48 (51.1)0.17
Positive12 (34.3)46 (48.9)
NA35247
NRAS mutation
Negative27 (90)74 (94.9)0.39
Positive3 (10)4 (5.1)
NA40263
BRAF mutation
Negative29 (90.6)87 (86.1)0.76
Positive3 (9.4)14 (13.9)
NA38240
HER 2
Negative8 (80)24 (70.6)0.70
Positive2 (20)10 (29.4)
NA 60307


Write to the Help Desk