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Genetic aspects of febrile convulsions

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Summary

A total of 6706 children 3 years of age (3491 boys, 3215 girls) in a particular geographical area in Fuchu (population approximately 182 000), Tokyo, was investigated. Some 654 children (9.8%; 10.5% for male, 9.0% for female) had had at least one convulsion, and the incidence of febrile convulsions was 6.7% (7.2% for male, 6.2% for female). The 450 FC children with febrile convulsions and 620 randomly selected control children were analyzed on the mode of inheritance.

The incidence of the disease among siblings was 21.9% (29.7% after age correction), which rose greatly with increasing numbers of affected family members, and the segregation ratio among siblings was higher (36.5%) with one FC parent, and lower (18.5%) if neither parent had had a seizure. The more severe the illness in FC children, the larger the incidence among siblings.

Population and family studies indicated that heredity plays an important role in febrile convulsions and that multifactorial inheritance is most likely.

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Authors and Affiliations

  1. Department of Human Genetics, Tokyo Metropolitan Institute for Neurosciences, 2-6 Musashidai, 183, Fuchu City, Tokyo, Japan

    Takayuki Tsuboi

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  1. Takayuki Tsuboi
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Tsuboi, T. Genetic aspects of febrile convulsions. Hum Genet 38, 169–173 (1977). https://doi.org/10.1007/BF00527399

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  • DOI: https://doi.org/10.1007/BF00527399

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