- Children who have epilepsy or febrile seizures may have increased risk for later neuropsychiatric conditions.
- Epilepsy seems tied to greater risk than febrile seizures, and events in the first decade of life were tied to greater neuropsychiatric vulnerabilities in adolescence and adulthood.
Why this matters
- These authors say that these associations are “more modest” than previously reported for some conditions.
- With epilepsy, risk increased for (HRs; 95% CIs):
- Any psychiatric disorder: 1.34 (1.25-1.44).
- Schizophrenia spectrum disorders: 1.50 (1.26-1.78).
- With febrile seizures, risk increased for:
- Any psychiatric disorder: 1.12 (1.08-1.17).
- Schizophrenia spectrum disorders: 1.23 (1.11-1.35).
- With both, risk increases were:
- Any disorder: 1.50 (1.28-1.75).
- Schizophrenia spectrum disorders: 2.75 (2.03-3.73).
- No increased risk for substance abuse disorders.
- Febrile seizure-associated risks increased with number of events involving hospital contact.
- Seizure etiology, onset type (i.e., focal vs generalized) did not change associations.
- Danish registry study of 1,291,679 individuals (43,148 febrile seizure history; 10,355 epilepsy; 1696 both), born January 1, 1978 through December 31, 2002.
- Funding: Novo Nordisk Foundation, Danish Epilepsy Association, others.
- Registration and diagnosis of all conditions changed during the covered period.
- No information on seizure duration, frequency, or cessation, or medication side effects.