The subjects, who were 5 years of age, consisted of 9 children with mild hearing Impairment at the level between 25 and 39 dB.
Three of the patients had impaired language development and showed an articulation index (A. I. ). level of less than 75%. These three cases have used hearing aids and received language therapy even after they started to attend school. The study suggests that language development appears to be more related to the A. I. level than the hearing level. Use of hearing aids and educational intervention should be considered, based on an appropriate observation of language development in the patient.