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KRAS test results among Stage IV CRC patients by tumor site, 2010–2013 (N=22,542).
| Total | Rectum | |
|---|---|---|
| N=22,542 | N=6,699 | |
| N (%) | N (%) | |
| 010: Abnormal (mutated) | 3005 (13.3) | 790 (11.8) |
| 020: Normal (wild type) | 3789 (16.8) | 1107 (16.5) |
| 997: Test ordered, results not in chart | 268 (1.2) | 68 (1.0) |
| 998: Test not done | 8125 (36.0) | 2436 (36.4) |
| 999: Unknown | 7355 (32.6) | 2298 (34.3) |
| Yes | 6794 (30.1) | 1897 (28.3) |
| No | 15748 (69.9) | 4802 (71.7) |
