Women aged 50-59 years in the colonoscopy arm had a higher probability of detection of advanced adenoma ( OR 4.49 ; 95 % CI 3.18-6 .35 ) , as well as of detection of neoplasms in proximal and distal locations ( proximal OR 19.34 ; 95 % CI 12.07-31 .00 ; distal OR 11.04 ; 95 % CI 8.13-15 .01 ) than women of the same age in the FIT arm .