Seasonality of birth in epilepsy : a Danish study.
A recent British epidemiological study, having found that the seasonality of birth in a large epileptic sample was significantly different from that of the general population, has pointed to neurodevelopmental disruption as the likely mechanism to cause at least part of the epilepsies of unknown aetiology.
The aim of this study is to replicate the British study using a large Danish sample.
Material and methods
The population studied is composed by all the 50,886 patients discharged from Danish Hospitals, with a diagnosis of epilepsy, in the period from 1977 to 1993.
The seasonal pattern of birth in this sample has been compared, using regression methods, with all the live births in Denmark.
The results were strikingly similar to the British study, with a deficit of epileptic births in September and an excess during the winter months.
This study seems to
confirm the seasonal presence in the environment of an aetiological factor (s) for epilepsy which acts in the perinatal period disrupting the neurodevelopment.
Mots-clés Pascal : Epilepsie, Idiopathique, Danemark, Europe, Naissance, Saison, Etiologie, Epidémiologie, Facteur risque, Facteur milieu, Homme, Système nerveux pathologie, Système nerveux central pathologie, Encéphale pathologie
Mots-clés Pascal anglais : Epilepsy, Idiopathic, Denmark, Europe, Birth, Season, Etiology, Epidemiology, Risk factor, Environmental factor, Human, Nervous system diseases, Central nervous system disease, Cerebral disorder
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0002418
Code Inist : 002B17A03. Création : 31/05/1999.