Table 3.

Univariate Analysis for OS

	HR	95%CI	P
Age ≥65	1.47	0.60–3.60	0.39
ECOG-PS (1 vs 0)	0.98	0.41–2.35	0.98
Sex (male vs female)	0.92	0.381–2.21	0.85
No. of metastatic sites ≥3	3.49	1.91–5.48	0.01*
Carbohydrate antigen 19–9 ≥600 U/mL	1.44	0.57–3.61	0.43
Previous radiation therapy	0.37	0.04–2.94	0.34
Previous surgery	0.94	0.21–4.20	0.94
Previous biliary stent	1.51	0.41–5.50	0.53
Pain present	0.84	0.34–2.05	0.70
FOLFIRI vs FOLFOX	0.35	0.14–0.87	0.02*
PFS >3 months with previous NabGem	0.73	0.29–1.85	0.51
>4 cycles of Gem-NabP	0.61	0.22–1.73	0.36

Note: *Statistically significant