Variables | Whole patients (N = 958) | Recurrence group (N = 293) | Non-recurrence group (N = 665) | P-value |
---|---|---|---|---|
Mean age at operation, years (±SD) | 57.0 (±12.3) | 57.7 (±12.6) | 56.7 (±12.2) | 0.240 |
Sex | Â | Â | Â | 0.449 |
 Male | 624 (65.1%) | 196 (66.9%) | 428 (64.4%) |  |
 Female | 334 (34.9%) | 97 (33.1%) | 237 (35.6%) |  |
Comorbidity | Â | Â | Â | 0.763 |
 Diabetes | 138 (14.4%) | 44 (15.0%) | 94 (14.1%) |  |
 Hypertension | 271 (28.3%) | 86 (29.4%) | 185 (27.8%) |  |
 Lung disease | 38 (4.0%) | 14 (4.8%) | 24 (3.6%) |  |
 Cerebrovascular accident | 64 (6.7%) | 20 (6.8%) | 44 (6.6%) |  |
 Heart disease | 25 (2.6%) | 8 (2.7%) | 17 (2.6%) |  |
 Liver cirrhosis | 9 (0.9%) | 4 (1.4%) | 5 (0.7%) |  |
 Renal disease | 15 (1.6%) | 4 (1.4%) | 11 (1.7%) |  |
Charlson Comorbidity Index | Â | Â | Â | 0.065 |
 0 | 243 (24.4%) | 62 (21.1%) | 181 (27.2%) |  |
 1–2 | 465 (48.5%) | 147 (50.2%) | 318 (47.8%) |  |
 3–6 | 250 (26.1%) | 84 (28.7%) | 166 (25.0%) |  |
Type of operation | Â | Â | Â | 0.063 |
 Laparoscopy | 102 (10.6%) | 23 (7.8%) | 79 (11.9%) |  |
 Open | 856 (89.4%) | 270 (92.2%) | 586 (88.1%) |  |
Type of gastrectomy | Â | Â | Â | 0.007 |
 Distal gastrectomy | 549 (57.2%) | 149 (50.9%) | 400 (60.2%) |  |
 Total gastrectomy | 409 (42.8%) | 144 (49.1%) | 265 (39.8%) |  |
Extent of lymphadenectomy | Â | Â | Â | 0.934 |
 D1 | 20 (2.0%) | 6 (2.0%) | 14 (2.1%) |  |
 D1 plus | 241 (25.2%) | 77 (26.3%) | 164 (24.7%) |  |
 D2 | 697 (72.8%) | 210 (71.7%) | 487 (73.2%) |  |
TNM stagea |  |  |  | <  0.001 |
 2A | 199 (20.8%) | 26 (8.9%) | 173 (26.0%) |  |
 2B | 237 (24.7%) | 61 (20.8%) | 176 (26.5%) |  |
 3A | 194 (20.3%) | 47 (16.0%) | 147 (22.1%) |  |
 3B | 194 (20.3%) | 80 (27.3%) | 114 (17.1%) |  |
 3C | 134 (14.0%) | 79 (27.0%) | 55 (8.3%) |  |