Age-related variables in childhood epilepsy: How do they relate to each other and to quality of life?

► Age-related variables correlate well only in kids with epilepsy onset ≤ 4-years. ► These correlation are weaker with epilepsy onset ≥ 9 years. ► We recommend choosing these variables carefully; do not use them interchangeably. ► Age-related variables are weakly associated with QOL in childhood epilepsy.