The 5-year colorectal cancer-specific survival probabilities were 80.6% for cases with KRAS-wild-type/BRAF-wild-type tumors, 67.9% for cases with codon 12 mutations, 75.8% for cases with codon 13 mutations, 79.4% for cases with codon 61 mutations, and 76.7% for cases with codon 146 mutations. Here, KRAS is linked to colorectal cancer.