For patients with CDAI < 280 , remission rate was not significantly different [ 85.7 % ( 24/28 ) vs 81.8 % ( 18/22 ) , P = 0.718 ] between the two groups , while treatment cost in EN group was less than that of IFX group [ ( 16.1 5.9 ) 10 ( 3 ) RMB vs ( 22.9 11.9 ) 10 ( 3 ) RMB , P = 0.021 ] .