In a systematic review, three studies from LMICs were identified that showed SMRs were highest in the youngest age groups, with a marked decline after early adulthood.1

Reference:

1.Levira F, Thurman DJ, Sander JW, et al. Premature mortality of epilepsy in low- and middle-income countries: A systematic review from the Mortality Task Force of the International League Against Epilepsy. Epilepsia 2017; 58 (1): 6–16.