A longitudinal study of epilepsy and other central nervous system diseases in individuals with and without a history of infantile autism.
Objective: To compare the prevalence and types of epilepsy and other central nervous system (CNS) diseases in a clinical sample of 118 individuals diagnosed as children with infantile autism (IA) with 336 matched controls from the general population. Methods: All participants were screened through the nationwide Danish National Hospital Register (DNHR). The average observation time was 30.3years (range 27-30years), and mean age at follow-up was 42.7years (range 27-57years). Results: Of the 118 individuals with IA, 29 (24.6%) were registered with at least one epilepsy diagnosis against 5 (1.5%) in the comparison group (p<0.0001; OR=21.6; 95% CI 8.1-57.3). Other CNS diseases occurred with low frequency in both groups and only cerebral palsy, unspecified (p=0.02) was significantly more frequent among participants with a history of IA. Conclusions: Our study lends further support to the notion that epilepsy, but not other CNS diseases, is a common comorbid condition in IA. Low intelligence, but not gender, was a risk factor for epilepsy in IA. Copyright © 2010 Elsevier B.V. All rights reserved.
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