Parameters | No. of patients | CRT | P | IRE1α | P | ||
---|---|---|---|---|---|---|---|
Low | High | Negative | Positive | ||||
Cases | 81 | 31 | 50 | Â | 43 | 38 | Â |
Age (years) | |||||||
  ≤ 65 | 63 | 25 | 38 | 0.625 | 36 | 27 | 0.171 |
  > 65 | 18 | 6 | 12 |  | 7 | 11 |  |
Gender | |||||||
 Male | 47 | 19 | 28 | 0.639 | 21 | 26 | 0.075 |
 Female | 34 | 12 | 22 |  | 22 | 12 |  |
Tumor location | |||||||
 Head | 57 | 21 | 36 | 0.683 | 30 | 27 | 0.899 |
 Body-tail | 24 | 10 | 14 |  | 13 | 11 |  |
Tumor size (cm) | |||||||
  < 3 | 24 | 7 | 17 | 0.274 | 13 | 11 | 0.899 |
  ≥ 3 | 57 | 24 | 33 |  | 30 | 27 |  |
Differentiation | |||||||
 Well | 22 | 7 | 15 | 0.466 | 12 | 10 | 0.872 |
 Moderate and poor | 59 | 24 | 35 |  | 31 | 28 |  |
T stage | |||||||
 T1 + T2 | 72 | 30 | 42 | 0.157 | 37 | 35 | 0.609 |
 T3 + T4 | 9 | 1 | 8 |  | 6 | 3 |  |
Lymph nodes metastasis | |||||||
 N0 (negative) | 65 | 30 | 35 | 0.003 | 30 | 35 | 0.012 |
 N1 (positive) | 16 | 1 | 15 |  | 13 | 3 |  |
UICC stage | |||||||
 I + IIA | 62 | 29 | 33 | 0.004 | 27 | 35 | 0.002 |
 IIB + III | 19 | 2 | 17 |  | 16 | 3 |  |
Perineural invasion | |||||||
 Absent | 70 | 28 | 42 | 0.636 | 37 | 33 | 0.917 |
 Present | 11 | 3 | 8 |  | 6 | 5 |  |
Vascular permeation | |||||||
 Absent | 49 | 15 | 34 | 0.079 | 28 | 21 | 0.365 |
 Present | 32 | 16 | 16 |  | 15 | 17 |  |
Pre-therapeutic CA19–9 level (U/ml) | |||||||
  < 37 | 22 | 12 | 10 | 0.066 | 8 | 14 | 0.066 |
  ≥ 37 | 59 | 19 | 40 |  | 35 | 24 |  |
Postoperative liver metastasis | |||||||
 Negative | 54 | 23 | 31 | 0.258 | 27 | 27 | 0.431 |
 Positive | 27 | 8 | 19 |  | 16 | 11 |  |