It is important for the fields of child neurology and child public health to clarify the prevalence and incidence rates of West syndrome because this syndrome is a major cause of developmental disorders.
However, there have been few reports in Japan on the prevalence rate of West syndrome in the general population.
We carried out a population-based survey in Okayama Prefecture, in western Japan in 1994. The population under 2 years of age in Okayama Prefecture in 1994 was 37,085. Six cases of West syndrome were identified. The prevalence rate was 0.16 per 1000.
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Accepted: August 2, 2001
Received in revised form: July 30, 2001
Received: June 1, 2001
© 2001 Elsevier Science B.V. Published by Elsevier Inc. All rights reserved.