The study found that for children up to 18 years old with epilepsy, the annual risk for death was 0.84 percent, compared with 0.22 percent for children of the same ages without epilepsy, according to the U.S. Centers for Disease Control and Prevention. The study found that for children up to 18 years old with epilepsy, the annual risk for death was 0.84 percent, compared with 0.22 percent for children of the same ages without epilepsy, according to the U.S. Centers for Disease Control and Prevention.