12 1 point WondraFrin, an new treatment to reduce stroke incidence, was tested in 1200 WondraFin treated subjects and 1100 placebo treated subjects for 12 months. During the study 125 WondraFrin- treated subjects and 130 placebo-treated subjects had a stroke. Based on these match the outcome measure to a value OR NNT RRR ARR Previous 0.77 20% 0.026 38 0.8 0.125 0.130 0.104