Table 3.
Baseline characteristics for patients categorized according to their response to chemoradiation.
| pCR (n=898) | ypT1-2 (n=966) | ypT3-4 (n=1302) | p-value | |
|---|---|---|---|---|
| Age (years) | 61 (±11) | 61 (±11,5) | 61 (±12,0) | p=0.819 |
| Gender (male) | 66% (589/896) | 65% (632/966) | 65% (843/1302) | p=0.894 |
| Missing | 0,2% (2/898) | 0% | 0% (1/1302) | |
| Clinical T-stage | ||||
| cT1 | 0,5% (4/878) | 0,3% (3/924) | 0,1% (1/1215) | |
| cT2 | 8% (71/878) | 9% (81/924) | 2% (21/1215) | |
| cT3 | 82% (723/878) | 84% (776/924) | 82% (999/1215) | p<0.0001 |
| cT4 | 9% (80/878) | 6% (64/924) | 16% (194/1215) | |
| Missing | 2% (20/898) | 4% (42/966) | 7% (87/1302) | |
| Clinical N-stage | ||||
| cN+ | 50% (431/855) | 55% (501/907) | 59% (486/1198) | p<0.0001 |
| Missing | 5% (43/898) | 6% (59/966) | 8% (104/1302) | |
| Tumour height (cm) | ||||
| · · · | 53% (230/434) | 54% (491/912) | 45% (545/1201) | |
| > 5 cm | 47% (204/434) | 46% (421/912) | 55% (656/1201) | p<0.0001 |
| Missing | 52% (464/898) | 6% (54/966) | 8% (102/1302) | |
| Type of surgery | ||||
| LAR | 76% (680/898) | 71% (686/966) | 68% (882/1302) | |
| APR | 22% (196/898) | 25% (238/966) | 28% (367/1302) | p=0.001 |
| Other | 2% (22/898) | 4% (42/966) | 4% (53/1302) | |
| Missing | 0% | 0% | 0% |
Cm=centimetre; LAR=low anterior resection; APR=abdominoperineal resection; pCR=pathologic complete response.