Watching the video ( OR : 3.6 [ 95 % CI : 1.8-7 .2 ] ) , being female ( OR : 2.1 [ 95 % CI : 1.0-4 .2 ] ) , engaging in oral sex ( OR : 2.8 [ 95 % CI : 1.4-5 .9 ] ) , and being older than 18 years ( OR : 3.8 [ 95 % CI : 1.8-7 .8 ] ) were all positively associated with testing .
