Table 4 Multivariate analysis of risk factors for death from other diseases

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