Table 4.
Multivariate analysis of risk factors for death from other diseases
| Variables | Hazard ratio | 95% confidence interval | P value |
|---|---|---|---|
| Age (years) | |||
| < 70 | 1.000 | ||
| ≥ 70 | 3.013 | 2.187–4.151 | < 0.001 |
| Performance status (ECOG) | |||
| 0 | 1.000 | ||
| 1/2/3 | 1.609 | 1.086–2.384 | 0.018 |
| Body mass index (kg/m2) | |||
| < 22.0 | 1.384 | 1.041–1.839 | 0.025 |
| ≥ 22.0 | 1.000 | ||
| Charlson Comorbidity Index score | |||
| 0 | 1.000 | ||
| 1/2 | 2.192 | 1.713–2.804 | < 0.001 |
| ≥ 3 | 4.813 | 3.022–7.668 | < 0.001 |
| Type of gastrectomy | |||
| TG | 1.620 | 1.195–2.197 | 0.002 |
| DG/PG/PPG | 1.000 | ||
| Postoperative complications* | |||
| Absent | 1.000 | ||
| Present | 1.402 | 1.024–1.919 | 0.035 |
*Grade II or higher according to the Clavien‒Dindo classification system
TG, total gastrectomy; DG, distal gastrectomy; PG, proximal gastrectomy; PPG, pylorus preserving gastrectomy