There was no significant difference in the success rate of medical treatment between the methotrexate-mifepristone ( n = 113 ) and the methotrexate-placebo group ( n = 99 ) : 79.6 % ( 90/113 ) versus 74.2 % ( 72/97 ) respectively , RR ( 95 % CI ) : 1.07 ( 0.92-1 .25 ) , P = 0.41 , non-significant .
