| TRG0-1 (n = 22) | TRG2-3 (n = 17) | P Value |
---|---|---|---|
Age, years, mean (sd) | 55.9 (12.6) | 61.1 (11.3) | 0.184 |
Sex | Â | Â | 0.318 |
 Female | 9 | 4 |  |
 Male | 13 | 13 |  |
Body mass index, mean (sd) | 23.5 (3.00) | 23.1 (2.67) | 0.626 |
Family history of cancer | Â | Â | 0.704 |
 Yes | 6 | 3 |  |
 No | 16 | 14 |  |
Tumor length, cm | Â | Â | 0.194 |
  ≤ 5 | 12 | 13 |  |
  > 5 | 10 | 4 |  |
Distance between anal verge and lower margin of tumor, cm | Â | Â | 1 |
  ≤ 5 | 15 | 11 |  |
  > 5 | 7 | 6 |  |
Colorectal polyps | Â | Â | 0.738 |
 Yes | 7 | 7 |  |
 No | 15 | 10 |  |
CEA level, ng/mL | Â | Â | 0.193 |
  ≤ 5 | 12 | 5 |  |
  > 5 | 10 | 12 |  |
Induction chemotherapy* | Â | Â | 0.334 |
 Yes | 10 | 11 |  |
 No | 12 | 6 |  |
Clinical T status | Â | Â | 0.184 |
 T3 | 6 | 9 |  |
 T4 | 16 | 8 |  |
Clinical N status | Â | Â | 0.054 |
 N1 | 14 | 5 |  |
 N2 | 8 | 12 |  |
Tumor differentiation | Â | Â | 0.859 |
 Low | 3 | 2 |  |
 Medium | 16 | 14 |  |
 High | 3 | 1 |  |
Vascular cancer thrombus | Â | Â | 1 |
 Yes | 3 | 3 |  |
 No | 19 | 14 |  |
Nerve invasion | Â | Â | 0.679 |
 Yes | 4 | 2 |  |
 No | 18 | 15 |  |