One hundred and fifty-five children with childhood deafness were examined over a period of 4 years in order to assess the aetiology of hearing disorder. In 21 (13%) children, deafness was a sequel of meningitis. Perinatal pathology accounted for 34 (22%) cases. The aetiology of deafness was unknown in 44 (28.4%) children. The percentage of unknown causes can be reduced if the deafness is detected early. Hearing loss was diagnosed only in 30 (19%) children by the age of 2 years. The early detection of deafness can be achieved by screening the high risk infants and educating the general practitioners and health assistants.
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