Table 3 Major postoperative morbidity. Univariable analysis
| Â | No | Yes | p value |
|---|---|---|---|
n = 437 (73.9%) | n = 154 (26.1%) | ||
Age (years) | 70 (61–79) | 74 (65–81) | 0.012 |
Age categories | Â | Â | 0.039 |
 < 75 | 263 (77.1%) | 78 (22.9%) |  |
 ≥ 75 | 174 (69.6%) | 76 (30.4%) |  |
Sex | Â | Â | 0.07 |
 Men | 259 (71.3%) | 104 (28.7%) |  |
 Women | 178 (78.1%) | 50 (21.9%) |  |
Location | Â | Â | 0.084 |
 GEJ-SIII type | 27 (62.8%) | 16 (37.2%) |  |
 Gastric | 410 (74.8%) | 138 (25.2%) |  |
ASA score | Â | Â | 0.034 |
 I | 33 (76.7%) | 10 (23.3%) |  |
 II | 189 (78.4) | 52 (21.6%) |  |
 III | 200 (71.2%) | 81 (28.8%) |  |
 IV | 13 (54.2%) | 11 (45.8%) |  |
Charlson | 1 (0–2) | 1 (0–2) | 0.52 |
Charlson categories | Â | Â | 0.896 |
 No or low (0–1) | 247 (74.4%) | 85 (25.6%) |  |
 Medium (2) | 83 (72.2%) | 32 (27.8%) |  |
 High (> 2) | 104 (73.8%) | 37 (26.2%) |  |
Neoadjuvant therapy | Â | Â | 0.036 |
 No | 303 (71.5%) | 121 (28.5%) |  |
 Yes | 128 (80%) | 32 (20%) |  |
Laparoscopic approach | Â | Â | 0.022 |
 No | 400 (75.3%) | 131 (24.7%) |  |
 Yes | 37 (61.7%) | 23 (38.3%) |  |
Gastrectomy | Â | Â | 0.015 |
 Proximal | 1 (25%) | 3 (75%) |  |
 Distal subtotal | 232 (77.6%) | 67 (22.4%) |  |
 Total | 202 (70.9%) | 83 (29.1%) |  |
Resection | Â | Â | 0.784 |
 R0 | 414 (74.1%) | 145 (25.9%) |  |
 R1 | 23 (71.9%) | 9 (28.1%) |  |
Lymphadenectomy | Â | Â | 0.085 |
 D0–D1 | 99 (69.2%) | 44 (30.8%) |  |
 D1+ or more | 336 (75.5%) | 109 (24.5%) |  |
pTNM classification | Â | Â | 0.739 |
 0 | 10 (90.9%) | 1 (9.1%) |  |
 IA | 51 (70.8%) | 21 (29.2%) |  |
 IB | 65 (75.6%) | 21 (24.4%) |  |
 IIA | 69 (79.3%) | 18 (20.7%) |  |
 IIB | 69 (71.1%) | 28 (28.9%) |  |
 IIIA | 54 (74%) | 19 (26%) |  |
 IIIB | 67 (73.6%) | 24 (26.4%) |  |
 IIIC | 52 (70.3%) | 22 (29.7%) |  |
Annual hospital volume | Â | Â | 0.791 |
 < 10 | 165 (73.3%) | 60 (26.7%) |  |
 ≥ 10 | 272 (74.3%) | 94 (25.7%) |  |