| Total | Major-responders | Non-responders | P |
---|---|---|---|---|
N = 248 | N = 102 | N = 146 | ||
Age (year, mean ± SD) | 54.61 ± 11.61 | 54.20 ± 11.17 | 55.20 ± 12.25 | 0.514 |
Sex | Â | Â | Â | 0.548 |
 Male | 176 (71.0%) | 101 (69.2%) | 75 (73.5%) |  |
 Female | 72 (29.0%) | 45 (30.8%) | 27 (26.5%) |  |
Histopathological type | Â | Â | Â | 0.793 |
 Adenocarcinoma | 236 (95.2%) | 138 (94.5%) | 98 (96.1%) |  |
 Mucinous adenocarcinoma | 12 (4.8%) | 8 (5.5%) | 4 (3.9%) |  |
Differentiation grade | Â | Â | Â | 0.274 |
 Well or moderate | 232 (93.5%) | 134 (91.8%) | 98 (96.1%) |  |
 Poor | 16 (6.5%) | 12 (8.2%) | 4 (3.9%) |  |
cT status | Â | Â | Â | 0.657 |
 cT2 | 10 (4.0%) | 6 (4.1%) | 4 (4.0%) |  |
 cT3 | 175 (70.6%) | 106 (72.6%) | 69 (67.6%) |  |
 cT4 | 63 (25.4%) | 34 (23.3%) | 29 (28.4%) |  |
cN status | Â | Â | Â | 0.07 |
 cN0 | 38 (15.3%) | 19 (13.0%) | 19 (18.6%) |  |
 cN1 | 101 (40.7%) | 54 (37.0%) | 47 (46.1%) |  |
 cN2 | 109 (44.0%) | 73 (50.0%) | 36 (35.3%) |  |
Tumour location | Â | Â | Â | 0.787 |
 < 5 cm | 140 (56.5%) | 85 (58.2%) | 55 (53.9%) |  |
 5–10 cm | 103 (41.5%) | 58 (39.7%) | 45 (44.1%) |  |
 > 10 cm | 5 (2.0%) | 3 (2.1%) | 2 (2.0%) |  |
CEA level | Â | Â | Â | 0.731 |
 Normal | 143 (57.7%) | 86 (58.9%) | 57 (55.9%) |  |
 Abnormal | 105 (42.3%) | 60 (41.1%) | 45 (44.1%) |  |
CA199 level | Â | Â | Â | 0.550 |
 Normal | 196 (79.0%) | 113 (77.4%) | 83 (81.4%) |  |
 Abnormal | 52 (21.0%) | 33 (22.6%) | 19 (18.6%) |  |
Chemotherapeutic regimen | Â | Â | Â | 0.001 |
 5-fluorouracil | 35 (14.1%) | 16 (11.0%) | 19 (18.6%) |  |
 Capecitabine | 33 (13.3%) | 10 (6.8%) | 23 (22.5%) |  |
 FOLFOX | 150 (60.5%) | 104 (71.2%) | 46 (45.1%) |  |
 Other regimens | 30 (12.1%) | 16 (11.0%) | 14 (81.4%) |  |
Time interval between nCRT and surgery | Â | Â | Â | 0.046 |
 < 7 weeks | 13 (5.3%) | 4 (2.8%) | 9 (8.8%) |  |
 7–10 weeks | 91 (36.8%) | 50 (34.5%) | 41 (40.2%) |  |
 > 10 weeks | 143 (57.9%) | 91 (62.8%) | 52 (51.0%) |  |
Neoadjuvant radiotherapy dose | Â | Â | Â | 0.012 |
 < 45 Gy | 20 (8.1%) | 6 (4.1%) | 14 (13.7%) |  |
 ≥ 45 Gy | 228 (91.9%) | 140 (95.9%) | 88 (86.3%) |  |