Fig. 3From: Comparing healthcare cost associated with the use of enzyme-inducing and non-enzyme active antiepileptic drugs in elderly patients with epilepsy in the UK: a long-term retrospective, matched cohort studyKaplan–Meier plot of time to index AED treatment failure. AED antiepileptic drug, EIAED enzyme-inducing AED, nEAAED non-enzyme active AED. Patients were censored at whichever occurred first: end of HES coverage; end of data coverage; end of registration/death; end of practice’s ‘up-to-standard’ statusBack to article page