Prevalence of Sensorineural Hearing Loss in Children in Costa Rica: Prevalencia de la hipoacusia infantil en Costa Rica

Benefits and challenges of newborn hearing screening for developing countries

“…For instance, some researchers retrospectively derived their prevalence data from the deaf school population using questionnaires as in Cyprus [38], Estonia [48] and Turkey [49]. Others employed multi-stage screening protocol varying from two-stage, as in Nigeria [30] and Gambia [33] for instance, to four-stage as in Costa Rica [47]. In one study from China, the initial screen consisted of clapping, whispered voice and behavioural responses [43], while in Gambia the initial screen was based on the parents' judgement of children who had hearing difficulty [33].…”

Birth Weight and Hearing Impairment in Norwegians Born From 1967 to 1993

“…However, the observed occurrence of hearing impairment is well in accordance with other studies. [1][2][3][4][5][6][7][8][9][10][11][12] The outcome was based on information on people who had received cash benefits from National Insurance Administration to cover expenses in connection with necessary treatment and/or training for hearing impairment. As explained earlier, it seems reasonable to consider this as a valid measure for severe hearing impairment among younger Norwegians.…”

“…Depending on the diagnostic criteria, the studied age group, and calculation method, the occurrence of hearing impairment varies, 10 but a commonly reported figure is 10 to 20 per 10 000 young people. [1][2][3][4][5][6][7][8][9][10][11][12] Several studies have shown that children who at birth had very low birth weight have increased risk of severe hearing impairment. [13][14][15] Less attention has been given the association between birth weight and hearing impairment in general taking into consideration other pregnancy-related conditions, which may represent causal factors in the development of hearing.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12] People who have severe hearing impairment will in general improve their condition with hearing aids, cochlear implants, and/or special training. Depending on the diagnostic criteria, the studied age group, and calculation method, the occurrence of hearing impairment varies, 10 but a commonly reported figure is 10 to 20 per 10 000 young people.…”

A practical screening model for hearing loss in Iranian school-aged children

“…[1][2][3][4][5][6] Since majority of the schools in such countries are based on auditory-verbal methods, hearing impairment will have negative outcomes on educational performance. Therefore, hearing screening at school entry has been proposed for the early detection and rehabilitation of hearing impaired school children in the developing countries.…”