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Table 5 Multivariate analyses of the overall survival in these group gastric cancer patients with peritoneal dissemination with palliative chemotherapy (Cox regression model)

From: Body mass index (BMI) may be a prognostic factor for gastric cancer with peritoneal dissemination

Variable

HR

95% CI

p value

OS in gastric cancer patients

 Palliative gastrectomy

 (Gastrectomy vs. without gastrectomy)a

0.652

0.477–0.893

0.008

 Tumor size

 (<5, ≥5, and <10 vs. ≥10 cm)

1.265

1.027–1.559

0.027

 Tumor location

 (Upper, middle, and lower vs. total)

0.972

0.844–1.118

0.689

 Peritoneal seeding grade

 (P1 and P2 vs. P3)

1.172

0.982–1.398

0.079

 Serum CEA level

 (Normal vs. elevated)

1.413

1.045–1.912

0.025

 BMI group

 (<18.5 and 18.5–23 vs. >23)

0.783

0.636–0.964

0.021

  1. Abbreviations: OS overall survival, HR hazard ratio, CI confidence interval
  2. aThe factor listed at the last was used as the control level in this Cox regression model