TABLE 1.
PATIENT DEMOGRAPHICS AND DISEASE CHARACTERISTICS
| Characteristic | Stage I–III (n=56) | Stage IV (n=71) |
|---|---|---|
| Median Age at Diagnosis (years) | 61 | 59 |
| Sex (%) | ||
| Male | 26 (46.4%) | 39 (54.9%) |
| Female | 30 (53.6%) | 32 (45.1%) |
| Race/Ethnicity (%) | ||
| Caucasian | 49 (87.5%) | 60 (84.5%) |
| African American | 5 (8.9%) | 2 (2.8%) |
| Hispanic | 1 (1.8%) | 2 (2.8%) |
| Asian | 1 (1/8%) | 7 (9.9%) |
| Stage at Diagnosis (%) | ||
| I | 8 (14.3%) | -- |
| II | 15 (26.8%) | -- |
| III | 33 (58.9%) | -- |
| IV | -- | 71 |
| T Stage (%) | ||
| T1 | 0 | 0 |
| T2 | 11 (14.3%) | 4 (5.6%) |
| T3 | 35 (62.5%) | 20 (28.2%) |
| T4 | 10 (17.9%) | 25 (35.2%) |
| TX | 0 | 22 (31.0%) |
| N Stage (%) | ||
| N0 | 23 (41.1%) | 3 (4.2%) |
| N1 | 15 (26.8%) | 14 (19.7%) |
| N2 | 18 (32.1%) | 31 (43.7%) |
| NX | 0 | 23 (32.4%) |
| Tumor Grade (%) | ||
| 1 (well differentiated) | 1 (1.8%) | 0 |
| 2 (moderately differentiated) | 35 (62.5%) | 36 (50.7%) |
| 3 (poorly differentiated) | 20 (35.7%) | 35 (49.3%) |
| Site of Primary Tumor (%) | ||
| Right | 35 (62.5%) | 41 (57.8%) |
| Left | 12 (21.4%) | 15 (21.1%) |
| Rectal | 9 (16.1%) | 15 (21.1%) |
| BRAF Mutation Type (%) | ||
| V600E | 53 (94.6%) | 67 (94.4%) |
| D594G | 2 (3.6%) | 4 (5.6%) |
| G496R | 1 (1.8%) | 0 |