[A] study, which was supported by the Finnish Medical Foundation, the Finnish Brain Foundation and the Emil Aaltonen Foundation examined over 200 persons who were in the 15 – 49 years age bracket and who had already experienced a stroke. The study then followed their case for nine years to test their hypothesis with the statin drugs.
The statistics are said to have been encouraging as 36 persons who had been taking statins regularly after their first stroke as a part of their treatment prescription never experienced a another episode of stroke; 11 percent of another 36 persons who had taken statin at some point after their first stroke experienced a second stroke or a vascular problem; and 20 percent of the remaining 143 people from the target population being studied who had never been given the statins despite their stroke, experienced a second stroke or vascular problem.
https://www.empowher.com/stroke/content/cholesterol-lowering-drug-holds-hope-young-stroke-patients