Table 1. Mutational status of patients with mCRC by genes and country regions.
| KRAS (n = 500, %) | NRAS (n = 500, %) | BRAF (n = 370, %) | ||||
|---|---|---|---|---|---|---|
| Country region | Wildtype | Mutated | Wildtype | Mutated | Wildtype | Mutated |
| North | 150 (56%) | 118 (44%) | 254 (95%) | 14 (5%) | 198 (96%) | 8 (4%) |
| North Pacific Coast | 68 (60%) | 46 (40%) | 112 (98%) | 2 (2%) | 74 (93%) | 6 (7%) |
| Bajío | 25 (49%) | 26 (51%) | 50 (98%) | 1 (2%) | 35 (97%) | 1 (3%) |
| South | 19 (54%) | 16 (46%) | 34 (97%) | 1 (3%) | 23 (92%) | 2 (8%) |
| Central | 13 (41%) | 19 (59%) | 30 (94%) | 2 (6%) | 22 (96%) | 1 (4%) |
| Total | 275 (55%) | 225 (45%) | 480 (96%) | 20 (4%) | 352 (95%) | 18 (5%) |