Variables | Complications (n = 225) | Non-complications (n = 2244) | P value |
---|---|---|---|
Sex (male/female) | 165/60 | 1459/785 | 0.012 |
Age (years) ≥ 65/< 65 | 64/161 | 451/1793 | 0.003 |
Body mass index (kg/m2) ≥ 25/< 25 | 41/184 | 310/1934 | 0.071 |
Smoking history; yes/no | 119/106 | 937/1307 | 0.001 |
ASA score ≥ 3/< 3 | 44/181 | 222/2022 | < 0.001 |
Abdominal surgical history; yes/no | 31/194 | 231/2013 | 0.106 |
Comorbidity; yes/no | 87/138 | 650/1594 | 0.002 |
Chronic obstructive pulmonary disease | 12/213 | 69/2175 | 0.070 |
Preoperative albumin (g/L) ≥35/< 35 | 151/74 | 1783/461 | < 0.001 |
Complication due to the tumor a; yes/no | 69/156 | 465/1779 | 0.001 |
Operation method; open/laparoscopy | 185/40 | 1719/525 | 0.056 |
Extent of gastric resection; subtotal/total | 158/67 | 1730/514 | 0.021 |
Extent of lymph node dissection ≥ D2/< D2 | 213/12 | 2108/136 | 0.661 |
Combined multi-organ resection; yes/no | 43/182 | 177/2067 | < 0.001 |
Operation time (min) ≥ 240/< 240 | 87/138 | 447/1797 | < 0.001 |
Intra-operative blood loss (mL) ≥ 300/< 300 | 59/166 | 435/1809 | 0.015 |
Lymph node metastasis; positive/negative | 154/71 | 1346/898 | 0.013 |
pTNM stage b; III/I-II | 135/90 | 1142/1102 | 0.009 |
Perioperative blood transfusion; yes/no | 96/129 | 409/1835 | < 0.001 |