tokens: Among users of aspirin , they were : rofecoxib 1 . 73 ( 1 . 52 , 1 . 98 ) , celecoxib 1 . 34 ( 1 . 19 , 1 . 52 ) , ibuprofen 1 . 51 ( 0 . 95 , 2 . 41 ) , diclofenac 1 . 69 ( 1 . 35 , 2 . 10 ) , naproxen 1 . 35 ( 0 . 97 , 1 . 88 ) and acetaminophen 1 . 29 ( 1 . 17 , 1 . 42 ) .