| Age, years |
| 80–84 |
352 (56.9) |
| 85–89 |
205 (33.1) |
| 90 and older |
62 (10.0) |
| Gender |
| Male |
253 (40.9) |
| Female |
366 (59.1) |
| Race (frequency missing =2) |
| White |
576 (93.4) |
| Non-white |
41 (6.7) |
| Ethnicity (frequency missing =3) |
| Hispanic |
26 (4.2) |
| Non-Hispanic |
590 (95.8) |
| Stage (frequency missing =21) |
| Stage 0 |
33 (5.5) |
| Stage I |
160 (26.8) |
| Stage II |
169 (28.3) |
| Stage III |
140 (23.4) |
| Stage IV |
96 (16.1) |
| Grade (frequency missing =111) |
| Grade I |
10 (2.0) |
| Grade II |
270 (53.1) |
| Grade III |
206 (40.6) |
| Grade IV |
22 (4.3) |
| Site |
| Cecum, ascending colon, hepatic flexure |
290 (46.9) |
| Transverse colon |
48 (7.8) |
| Sigmoid, descending colon, splenic flexure |
127 (20.5) |
| Rectosigmoid junction |
29 (4.7) |
| Rectum |
107 (17.3) |
| Colon |
11 (1.8) |
| Appendix |
7 (1.1) |
| Histology (frequency missing =11) |
| Adenocarcinoma |
581 (95.6) |
| Carcinoma |
25 (4.1) |
| Neuroendocrine carcinoma |
2 (0.3) |
| Chemotherapy (frequency missing =15) |
| No |
514 (85.1) |
| Yes |
90 (14.9) |
| Radiation (frequency missing =2) |
| No |
582 (94.3) |
| Yes |
35 (5.7) |
| Surgery (frequency missing =6) |
| No |
92 (15.0) |
| Yes |
521 (85.0) |
| Surgery type (frequency missing =6) |
| None |
92 (15.0) |
| Polypectomy |
29 (4.7) |
| Proctocolectomy, hemicolectomy, colectomy |
474 (77.3) |
| Transanal excision |
18 (2.9) |
| Mortality status |
| Alive |
143 (23.1) |
| Dead |
476 (76.9) |
