Survival analysis indicated high expression of stromal MCT4 to be an independent factor in predicting poor overall survival ( OS ) ( HR and 95 % CI = 1.962 , 1.032-3 .729 , p = 0.040 ) and disease free survival ( DFS ) ( HR and 95 % CI = 2.081 , 1.158-3 .741 , p = 0.014 ) of GC patients .