Table 4 Resected patients: univariate and multivariate analysis of factors influencing overall survival (n = 142)

Underweight (BMI < 18.5 kg/m²)

.44

–

Obesity (BMI ≥ 30 kg/m²)

.01

2.99 (1.34–6.66)

<.01

Performance status (1 versus 0)

< .01

1.91 (1.15, 3.17)

.01

Weight loss at diagnosis

.14

–

Continuous weight loss at restaging

.91

–

Jaundice

.87

–

Abdominal pain

.68

–

CA 19-9 level

.34

–

Tumor location (head versus body/tail)

.86

–

Tumor staging (BL versus LA)

< .01

–

R1 status

1.75 (1.03–2.96)

.04

Lymph node invasion

1.66 (1.01–2.74)

.04

Adjuvant treatment

< .01

.5 (.299–.843)

< .01