Prognostic predictive values of gemcitabine sensitivity-related gene products for unresectable or recurrent biliary tract cancer treated with gemcitabine alone

Table 3 Univariate analysis for overall survival by log-rank test

Variable	Number	Median overall survival (months)	P value
Primary tumor site
Extrahepatic bile duct	18	11.4	0.2423
Gallbladder	10	9.2
Recurrence or unresectable
Recurrence	22	10.0	0.6183
Unresectable	6	9.2
Histological type
Well/moderately	21	10.0	0.9202
Poor	7	11.4
hENT1 expression
Low	11	5.7	0.0057
High	17	11.4
dCK expression
Low	13	9.2	0.3725
High	15	11.4
RRM1 expression
Low	11	10.2	0.5941
High	17	10.0

dCK, deoxycytidine kinase; hENT1, human equilibrative nucleoside transporter; RRM1, ribonucleotide reductase subunit M1.

ISSN: 1477-7819