Table 2 Overview and univariate analysis of surgical data and surgery-related outcomes
Surgery-related factors | N (%) (N = 60) | Log-rank P value (with OS) | Log-rank P value (with PFS) |
|---|---|---|---|
Type of surgical method | Â | 0.981 | 0.562 |
 Open surgery | 41(68.3%) |  |  |
 Laparoscopic surgery | 19(31.7%) |  |  |
Scope of lymph node dissection |  | – | – |
 D1 + lymphadenectomy | 3(5.0%) |  |  |
 D2 lymphadenectomy | 57(95.0%) |  |  |
Marginal condition |  | – | – |
 Negative | 59(98.3%) |  |  |
 Positive | 1(1.7%) |  |  |
Lymph node metastasis | Â | 0.564 | 0.243 |
 Positive | 20(33.3%) |  |  |
 Negative | 40(66.7%) |  |  |
TRG grade | Â | 0.070 | 0.100 |
 Grade 0 | 8(13.3%) |  |  |
 Grade 1 | 20(33.3%) |  |  |
 Grade 2 | 26(43.4%) |  |  |
 Grade 3 | 6(10%) |  |  |
Postoperative pathologic stage | Â | 0.000 | 0.000 |
 Stage 0–II | 55(91.7%) |  |  |
 Stage III–IV | 5(8.3%) |  |  |
Postoperative complications | Â | 0.438 | 0.095 |
 Anastomotic fistula | 6(10%) |  |  |
 Haemorrhage | 4(6.7%) |  |  |
 Infection | 7(11.7%) |  |  |
 No severe complications | 43(71.6%) |  |  |