Abstracts

Rationale: Febrile seizures (FS) are the most common seizures of childhood, occurring in 2 to 5 percent of children six months to five years of age. But there is no data for prevalence of FS in Korea. The aim of this study was to evaluate the prevalence and recurrence of FS in Korean children using the big data.Methods: The study data were collected from the Korea National Health Insurance Review and Assessment Service for 2009-2013. Patients who had febrile convulsion for main diagnosis were enrolled. The overall prevalence of FS less than 10 years old was estimated and to evaluate the incidence of FS in children born in 2009.Results: The annual prevalence of FS determined by hospital-visiting rate in Korea was 1.4%, 1.5% in boys and 1.2% in girls in age below 5 years old. In second year of life has highest risk with first FS. The prevalence has a peak in the third year of life with 2.2%. Monthly prevalence showed FS risk is higher during April to July as 42.3% (Mann-Whitney test, P=0.0001). The recurrence rate was 12.3%.Conclusions: Our study showed overall prevalence of FS using a data of total population in Korea. The prevalence is within a range of those reported in other country, and increased risk during warm weather needs further study with other correlating factors.