HLA class I expression level in colon or rectal malignant tumors surgically resected from 2863 patients, by tumor location
| Location | ||||||
| Colon (N=1620) | Rectum (N=1243) | Total (N=2863) | ||||
| N | % | N | % | N | % | |
| HLA-A | ||||||
| Not detected | 184 | 15.9 | 80 | 7.9 | 264 | 12.2 |
| Low | 380 | 32.8 | 312 | 31.0 | 691 | 31.9 |
| High | 594 | 51.3 | 616 | 61.1 | 1210 | 55.9 |
| HLA-B/C | ||||||
| Not detected | 87 | 6.2 | 39 | 3.3 | 126 | 4.9 |
| Low | 299 | 21.4 | 222 | 18.7 | 521 | 20.2 |
| High | 1011 | 72.4 | 926 | 78.0 | 1937 | 75.0 |
| Total HLA class I | ||||||
| Not detected | 338 | 20.9 | 120 | 9.7 | 458 | 16.0 |
| Low | 556 | 34.3 | 420 | 33.8 | 976 | 34.1 |
| High | 726 | 44.8 | 703 | 56.6 | 1429 | 49.9 |
HLA, human leucocyte antigen.