Figure 1. Age When Seizures Began, at Clinical Diagnosis, and at Time of Genetic Testing.

A, Age at seizure initiation and age of clinical diagnosis were available if respondents indicated that the reason for testing was a clinical presentation of epilepsy. Age was unknown or not applicable for seizure onset (n = 40) and clinical diagnosis (n = 42). B, Violin plots reporting the difference between age at clinical diagnosis and age at time of genetic testing.