Statins in Frail Older Patients with Ischemic Stroke or Transient Ischemic Attack - the Prospective Cohort Study

Inclusion Criteria: * age = 70 years or older at the time of ischemic stroke or TIA; * inclusion within 6 weeks after diagnosis of ischemic stroke or TIA; * already using statin therapy at the time of the index event; * frailty as defined by a pre-event score of 4-7 and/or post-event score of 6-7 on the validated Clinical Frailty Scale. Exclusion Criteria: * Previous serious adverse drug reactions (defined as an adverse reaction that results in death, is life-threatening, requires hospitalisation or prolongation of existing hospitalisa-tion, results in persistent or significant disability or incapacity, or is a birth defect32) to statins or other contraindications to statin use. * Very severe frailty or very limited life expectancy (\< 6 months) as defined by a score \>= 8 points on the validated Clinical Frailty Scale. * Inability to communicate in Dutch. * Inability to respond to questions, either independently or with the assistance of a proxy. * Inability or unwillingness to provide written informed consent, either independently or with the assistance of a proxy.