[The prevalence rate and etiology of severe motor and intellectual disabilities syndrome in Okinawa].
We studied sixty-three children of severe motor and intellectual disabilities syndrome aged between 3 and 5 years, who live in Okinawa. Severe motor and intellectual disabilities syndrome were defined as those who belong to classes 1 approximately 4 of Ohshima's classification (incapable of walking with IQs not more than 35). The prevalence rate was about 1.12/1,000 live births. Forty-four% of the total children belonged to class 1 of Ohshima's classification (bedridden and IQs less than 20). The factors were: congenital 31.7%, perinatal 38.1%, postnatal 14.3%, and unknown 15.9%. The perinatal factor was still relatively high as compared with the others.
Miyagi
K
K
Nago Ryoikuen, Okinawa.
Ochiai
Y
Y
Nakada
Y
Y
Hirayasu
K
K
Takaesu
E
E
D002675:Child, Preschool; D006233:Persons with Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology*; D007564:Japan / Q000453:epidemiology; D008297:Male; D015995:Prevalence; D011596:Psychomotor Disorders / Q000453:epidemiology*; D013577:Syndrome