Characteristics of study groups.

Data are presented as median (IQR) unless stated otherwise. *Blood analysis results at presentation. †p <0.05, ‡p <0.01, and §p <0.001 for comparisons between febrile seizures and controls. ¶p <0.05, **p <0.01, and ††p <0.001 for comparisons between febrile and epileptic seizures. Between-group comparisons were performed with Mann-Whitney U, chi square or Fisher's exact test as appropriate. ED: emergency department; URTI: upper respiratory tract infection; LRTI: lower respiratory tract infection; UTI: urinary tract infection. Characteristics of study groups.