Abstract: Objective To analyze the influence of cochlear implant age, sexuality, and rehabilitation time on tone recognition ability.Methods 272 hearing-impaired children aged 2~6 years old with cochlear implants were enrolled in the study. By three factors mixed design,the sexuality, age and rehabilitation time of the children (independent variable) and the tone recognition rate (dependent variable) wereanalyzed. Results The rehabilitation time and age had significantly main effect in tone recognition rate (P<0.001), but age (P>0.05). The interactionof rehabilitation time and age also had main effect (P<0.001). Conclusion Age and rehabilitation time are important factors fortone recognition ability. The younger the children are, the better the recognition ability is with the extension of rehabilitation time.

Key words: hearing-impaired children, cochlear implant, hearing rehabilitation, tone recognition