Baseline patient and tumour characteristics, and oncologic treatments
| Characteristic | No. (%) of patients* n = 714 |
|---|---|
| Patient characteristics | |
| Age, median (IQR), yr | 66 (56–74) |
| Sex | |
| Female | 284 (39.8) |
| Male | 430 (60.2) |
| ASA class | |
| I | 21 (2.9) |
| II | 170 (23.8) |
| III | 245 (34.3) |
| IV | 39 (5.5) |
| Unknown | 239 (33.5) |
| Comorbidities | |
| Coronary artery disease | 90 (12.6) |
| Hypertension | 337 (47.2) |
| Chronic obstructive pulmonary disease | 57 (8.0) |
| Diabetes mellitus | 134 (18.8) |
| Tumour characteristics | |
| Site of primary | |
| Rectosigmoid | 376 (52.7) |
| Rectum | 338 (47.3) |
| Pathological stage | |
| AJCC 0 (after neoadjuvant therapy) | 30 (4.2) |
| AJCC I | 172 (24.1) |
| AJCC II | 196 (27.4) |
| AJCC III | 225 (31.5) |
| AJCC IV | 85 (11.9) |
| Unknown | 6 (0.8) |
| Pathological tumour stage | |
| T0 | 25 (3.5) |
| Tis | 95 (13.3) |
| T1 | 127 (17.8) |
| T2 | 385 (53.9) |
| T3 | 76 (10.6) |
| T4 | 5 (0.7) |
| Unknown | 1 (0.1) |
| Pathological nodal stage | |
| N0 | 411 (57.6) |
| N1 | 200 (28.0) |
| N2 | 98 (13.7) |
| Unknown | 5 (7.0) |
| Metastasis | |
| M0 | 629 (88.1) |
| M1 | 85 (11.9) |
| Oncologic treatments | |
| Surgical approach | |
| Open | 415 (58.1) |
| Minimally invasive | 291 (40.8) |
| Unknown | 8 (1.1) |
| Neoadjuvant therapy | 188 (26.3) |
| Adjuvant chemotherapy | 371 (52.0) |
AJCC = AJCC Cancer Staging Manual, 7th edition; ASA = American Society of Anesthesiologists; IQR = interquartile range.
↵* Except where noted otherwise.