Table 4.

Univariate and multivariate analyses of factors influencing overall survival at diagnosis (n = 234)

	P-value	Hazard ratio [95% CI]	P-value
Performance status score ≥ 2	< 0.01	1.92 [1.06–3.46]	0.031
Borderline status at diagnosis	0.35		ns
Arterial invasion at diagnosis	0.48		ns
Back pain	0.041		ns
Weight loss	0.037	1.49 [1.02–2.19]	0.041
CA 19–9 level > 500 IU	0.087	1.79 [1.25–2.57]	< 0.01
Continuous chemotherapy	0.065		ns