Table 2 Entire cohort: univariate and multivariate analysis of factors influencing overall survival (n = 454)

Underweight (BMI < 18.5 kg/m²)

.37

–

Performance status (0–1 versus 2–3)

< .01

1.6 (1.21–2.11)

< .01

Weight loss at diagnosis

< .01

–

Continuous weight loss at restaging

.01

9.56 (6.32–14.5)

< .01

Jaundice

.28

–

Pain

.12

–

CA 19-9 level

.08

–

Tumor location (head versus body/tail)

.54

–

Tumor staging (BRPC versus LAPC)

< .01

–

Resection

< .01

.38 (.284–.513)

< .01