Among 899 first-year university women ( mean age = 18.5 years ) , 58.7 % ( 95 % CI : 55.4 % , 62.0 % ) had experienced one or more forms of victimization since the age of 14 years , 35.0 % ( 95 % CI : 31.9 % , 38.3 % ) had experienced at least one completed or attempted rape , and 23.5 % ( 95 % CI : 20.7 % , 26.4 % ) had been raped .