Exact(5)
Persistent middle ear discharge was probably unusual (as it is a readily identified complication of AOM).
Audiometric testing was carried out for all children to exclude those with persistent middle ear effusion accompanied by a significant hearing loss of >20 dB.
We have studied OM in Aboriginal communities where almost all children have persistent middle ear disease from an early age [ 3]; nevertheless, our results could also be relevant for other high-risk groups.
3 The conductive hearing loss associated with persistent middle ear effusion (around 25 dB) or TMP (35 60 dB) has detrimental effects on auditory processing, speech and language development, behavioural and communication skills, and educational achievement.
Exclusion criteria were chronic hearing deficits, persistent middle ear effusion accompanied by a significant hearing loss of >20 dB, visual impairments, genetic syndromes, pervasive developmental disorders or other diseases with a known influence on language development, deficits in receptive language and/or in non-verbal cognitive abilities, and previous language intervention.
Similar(3)
A high proportion of children with persistent diarrhoea in middle and low income countries die.
For example, persistent anxiety in middle age has been shown to be associated with a greater risk of dementia in elderly people.
The other categories were "persistent moderate fitness" (middle tertile at both life stages), "increasing fitness" (an increase of one or two categories), and "persistent high fitness" (highest tertile at both life stages).
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