Demographic characteristics and risk factors of first febrile seizures: a Jordanian experience.

A prospective study of 203 children admitted with a first febrile seizure was carried out over 18 months. Aseptic meningitis was diagnosed in nine children (4%). The mean age of the children was 19.9 months and the peak age incidence (88%) was between 6 months and 3 years. Complex seizures were seen in 16 cases (8%). There was a history of perinatal asphyxia in 16 patients (8%), positive family history of epilepsy in 3%, of first degree relatives and a history of febrile seizures in siblings in 13%. Upper respiratory tract infection was the commonest triggering factor, diagnosed in 53% of cases. The third child was the most commonly affected (22%) in the family. There was a lower incidence of both complex febrile seizures and history of seizures in siblings compared to other studies. Lumbar puncture should be considered for all children below the age of 2 years, presenting with a first febrile seizure.