Table 1.
Characteristics of 408 patients undergoing surgery for colorectal cancer. Figures are number (percentage) of patients unless stated otherwise
| No (%) of patients | |
|---|---|
| Median (range) age (years) | 68 (29-92) |
| Men | 247 (60) |
| Women | 161 (40) |
| Height of primary tumour (from anal verge): | |
| 0-5 cm | 139 (34) |
| 5.1-10 cm | 145 (36) |
| >10.1 cm | 101 (25) |
| Missing | 23 (6) |
| Tumour differentiation: | |
| Moderately/Well | 351 (86) |
| Poorly | 40 (10) |
| Unknown | 17 (4) |
| Treatment given: | |
| Primary surgery | 311 (76) |
| Median (range) days from MRI to primary surgery | 26 (1-119) |
| Surgery after chemoradiotherapy/long course radiotherapy | 97 (24) |
| Median (range) days from MRI to surgery after chemoradiotherapy/long course radiotherapy | 30 (1-181) |
| Operation performed: | |
| Anterior resection | 294 (72) |
| Abdominoperineal excision | 86 (21) |
| Hartmann's procedure | 23 (6) |
| Extended resection | 5 (1) |
| Tumour stage after primary surgery (n=311): | |
| pT1 | 34 (8) |
| pT2 | 72 (18) |
| pT3 | 182 (45) |
| pT4 | 23 (6) |
| Tumour stage after chemoradiotherapy or long course radiotherapy followed by surgery (n=117):
| |
| ypT0 | 7 (7) |
| ypT1 | 2 (2) |
| ypT2 | 21 (22) |
| ypT3 | 52 (54) |
| ypT4 | 15 (15) |
| Median (range) nodes found per specimen | 12 (0-49) |
MRI=magnetic resonance imaging; pT=stage assessed by pathological examination and tumour size; ypT=tumour also assessed after neoadjuvant treatment.