Table 1. Baseline characteristics of patients in EXCITE.
| Baseline characteristics | Number of patients (%) |
|---|---|
|
Gender | |
| Female | 21 (26%) |
| Male | 61 (74%) |
|
Age at registration (years) | |
| Median (range) | 62 (26–79) [n=82] |
|
WHO performance status | |
| 0 | 62 (76%) |
| 1 | 20 (24%) |
|
Defunctioning stoma | |
| Ileostomy | 3 (4%) |
| Colostomy | 4 (5%) |
| None | 75 (91%) |
|
Distance of distal end of tumour from anal verge using rigid sigmoidoscopy (mm)a | |
| Median (range) | 50 (0–130) [n=63] |
|
Distance of distal end of tumour from anal verge using MRI (mm)a | |
| Median (range) | 50 (0–120) [n=78] |
|
Maximum superior-inferior tumour dimension (mm) | |
| Median (range) | 51 (5–110) [n=76] |
|
Maximum tumour diameter in a plane perpendicular to the longitudinal central axis of the rectum (mm) | |
| Median (range) | 28 (10–100) [n=55] |
| Not measurable [n=25] | |
| Missing [n=2] | |
|
mrT-stage | |
| T2 | 6 (7%) |
| T3 | 67 (82%) |
| T4 | 9 (11%) |
|
mrN-stage | |
| N0 | 14 (17%) |
| N1 | 42 (51%) |
| N2 | 26 (32%) |
|
M-stage | |
| M0 | 82 (100%) |
|
Mesorectal edge on MRI scan | |
| Potentially involved (⩽ 1mm gap) | 43 (52%) |
| Involved, not breached | 22 (27%) |
| Breached | 17 (21%) |
| Total | 82 (100%) |
Abbreviation: MRI=magnetic resonance imaging.
a
All 82 patients had a measurement for distance of distal end of tumour from anal verge using either rigid sigmoidoscopy or MRI.