[Incidence rate of cerebral palsy, severe mental and motor retardation, and mental retardation in a suburban Tokyo area].
We investigated the incidence rates of several neurological diseases in childhood in a suburban Tokyo area with a total population of about 130,000. The number of liveborn babies during 1985-1989 was 6,772. The number of patients with cerebral palsy (CP) was 13 and the incidence rate was 1.9/1,000, which is equal to the results of reports from several countries. Patients with severe mental and motor retardation (SMMR) was 7 and the incidence rate was 1.0/1,000. Five out of the 7 children with SMMR always needed medical care and were always or very frequently hospitalized. Prenatal brain damage played a major role in the pathogenesis of CP and SMMR. The number of patients with Down syndrome (DS) was 9 and the incidence rate was 1.3/1,000. The number of patients with mental retardation (MR) except DS was 64 and the incidence rate was 11.6/1,000. We conclude that the incidence rates of CP, DS, SMMR, and MR still remain high and that we need further strategy to prevent pediatric neurological diseases.
Suzuki
H
H
Division of Child Neurology, National Center Hospital for Mental, Nervous, and Muscular Disorders, Tokyo.
Kodama
K
K
D002547:Cerebral Palsy / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007223:Infant; D008607:Intellectual Disability / Q000453:epidemiology*; D009069:Movement Disorders / Q000453:epidemiology*; D014041:Tokyo / Q000453:epidemiology; D014504:Urban Health