Variables | Number of patients | Incidence rate of DOD (%) | P value | |
---|---|---|---|---|
5-year | 10-year | |||
Age (years) |  |  |  | < 0.001 |
 < 70 | 529 |   2.6 |   8.2 |  |
 ≥ 70 | 281 | 15.3 | 32.5 |  |
Gender | Â | Â | Â | Â Â 0.233 |
 Male | 587 |   7.5 | 17.9 |  |
 Female | 223 |   5.8 | 12.8 |  |
Performance status (ECOG) |  |  |  | < 0.001 |
 0 | 679 |   3.8 | 10.9 |  |
 1/2/3 | 131 | 23.7 | 44.6 |  |
Body mass index (kg/m2) | Â | Â | Â | Â Â 0.019 |
 < 22.0 | 334 |   8.7 | 21.3 |  |
 ≥ 22.0 | 476 |   5.9 | 13.1 |  |
Charlson Comorbidity Index score |  |  |  | < 0.001 |
 0 | 542 |   2.5 |   9.3 |  |
 1/2 | 232 | 13.8 | 25.8 |  |
 ≥ 3 |   36 | 33.3 | 64.1 |  |
Cardiovascular disease |  |  |  | < 0.001 |
 Absent | 749 |   6.4 | 15.3 |  |
 Present |   61 | 14.8 | 32.0 |  |
Respiratory disease |  |  |  | < 0.001 |
 Absent | 756 |   6.1 | 15.0 |  |
 Present |   54 | 20.4 | 38.4 |  |
Renal disease |  |  |  | < 0.001 |
 Absent | 775 |   5.5 | 14.3 |  |
 Present |   35 | 40.0 | 63.1 |  |
Liver disease | Â | Â | Â | Â Â 0.033 |
 Absent | 775 |   6.5 | 15.8 |  |
 Present |   35 | 20.0 | 31.7 |  |
Endocrine and collagen disease | Â | Â | Â | Â Â 0.006 |
 Absent | 711 |   6.2 | 15.3 |  |
 Present |   99 | 13.1 | 25.1 |  |
Neurological disease |  |  |  | < 0.001 |
 Absent | 759 |   6.2 | 15.2 |  |
 Present |   51 | 19.6 | 37.5 |  |
Type of gastrectomy |  |  |  | < 0.001 |
 TG | 225 | 10.2 | 24.1 |  |
 DG/PG/PPG | 585 |   5.8 | 13.6 |  |
Lymphadenectomy |  |  |  | < 0.001 |
 D1/1+ | 446 | 10.3 | 22.0 |  |
 D2/3 | 364 |   3.0 | 10.0 |  |
Combined resection | Â | Â | Â | Â Â 0.122 |
 Absent | 700 |   7.4 | 16.4 |  |
 Present | 110 |   4.5 | 16.7 |  |
Postoperative stay in hospital (days) | Â | Â | Â | Â Â 0.001 |
 < 20 | 450 |   5.3 | 12.3 |  |
 ≥ 20 | 360 |   9.2 | 21.5 |  |
Operative time (min.) | Â | Â | Â | Â Â 0.044 |
 < 250 | 337 | 11.0 | 21.0 |  |
 ≥ 250 | 473 |   4.2 | 13.2 |  |
Blood loss (mL) | Â | Â | Â | Â Â 0.813 |
 < 250 | 422 |   7.6 | 15.6 |  |
 ≥ 250 | 388 |   6.4 | 17.1 |  |
Postoperative complications* |  |  |  | < 0.001 |
 Absent | 602 |   5.2 | 12.9 |  |
 Present | 208 | 12.5 | 27.2 |  |
Pathological stage†|  |  |  |   0.002 |
 pStage I | 661 |   5.4 | 14.3 |  |
 pStage II/III | 149 | 14.1 | 26.1 |  |