Childhood deafness in southern Africa. An aetiological survey of 3,064 deaf children.
We have completed a survey of the causes of deafness in 3,064 children with defective hearing who attend special schools in Southern Africa. Specific genetic or multifactorial syndromes were diagnosed in 7 per cent, familial undifferentiated deafness was recognized in 11 per cent, while in 25 per cent the deafness was acquired.
D000353:Africa, Southern; D002648:Child; D003638:Deafness / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male