The rate of endoscopic recurrence was significantly lower in ADA ( 6.3 % ) compared with the AZA ( 64.7 % ; odds ratio ( OR ) = 0.036 ( 95 % confidence interval ( CI ) 0.004-0 .347 ) ) and mesalamine groups ( 83.3 % ; OR = 0.013 ( 95 % CI 0.001-0 .143 ) ) .
