Shambaugh and his associates1 have recently completed a comprehensive study of 5,348 children in institutions for the deaf. Similar studies have not been attempted before, although Newhart2 and others have studied children in public schools for evidences of deafness. Shambaugh's study consists of an analysis of the history and a complete aural examination of each patient. Sixty-two per cent of the children were found to be congenitally deaf. More than half of the cases of acquired deafness occurred before the age of 3. Shambaugh declares that probably a large proportion of the group of acquired deafness are really congenital, since parents desire to escape the stigma of having given birth to deaf children and because deafness is often not definitely established until the age of 3. The statistics show that severe deafness in children is acquired in almost all cases before the age of 10. Meningitis was responsible
STATISTICAL STUDIES OF DEAF CHILDREN. JAMA. 1931;96(9):692. doi:10.1001/jama.1931.02720350044013
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