We are very grateful for the comments of van der Meer et al. on our paper describing retention rates of the first prescribed antiepileptic drugs (AEDs) in a large cohort of patients with poststroke epilepsy [1]. We decided to use Kaplan Meier (KM) analysis for several reasons. Firstly, the basic assumption of a KM analysis, that censoring (because of death) is independent of the outcome (discontinuation of an AED) seems reasonable. Secondly, one of the benefits of a KM analysis is that it allows easy comparison with the existing literature.
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