The median overall survivals were 13.9 ( 95 % confidence interval [ CI ] : 10.8-17 .6 ) and 12.7 ( 95 % CI : 10.3-17 .2 ) months for CPT-11 / CDDP and CPT-11 , respectively ( hazard ratio : 0.834 ; 95 % CI : 0.596-1 .167 , P = 0.288 ) .