Table 1 Characteristics of CC patients aged < 40 in the SEER database, 2004–2013 (N = 2360)
Characteristics | Number of patients | (%) | |
|---|---|---|---|
Gender | Male | 1180 | 50.0 |
Female | 1180 | 50.0 | |
Race | White | 1758 | 74.5 |
Black | 317 | 13.4 | |
*Others | 285 | 12.1 | |
AJCC stage | Stage I | 293 | 12.4 |
Stage II | 823 | 34.9 | |
Stage III | 1244 | 52.7 | |
Grade | Grade I | 146 | 6.2 |
Grade II | 1622 | 68.7 | |
Grade III | 517 | 21.9 | |
Grade IV | 75 | 3.2 | |
Histology type | Adenocarcinoma | 2021 | 85.7 |
Mucous/signet-ring cell | 312 | 13.2 | |
Other types | 27 | 1.1 | |
Tumor location | Left-sided colon | 1215 | 51.5 |
Right-sided colon | 1145 | 48.5 | |
T stage | T1/T2 | 422 | 17.9 |
T3/T4 | 1938 | 82.1 | |
N stage | N0 | 1129 | 47.8 |
N1/N2 | 1231 | 52.2 | |
Tumor size (cm) | 0–5 | 1059 | 44.9 |
≥5 | 1301 | 55.1 | |
Surgical procedure | Partial colectomy | 917 | 38.9 |
Hemicolectomy | 1443 | 61.1 | |