Developmental Trajectories and Influencing Factors of Aural/Oral Performance in Mandarin-Speaking Children with

Jie Bai1, Ying Li1, Zhihan Lin1

  • 1Department of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.

Trends in Hearing
|April 23, 2026
PubMed

Insights

Early cochlear implantation (CI) significantly improves auditory development in children. Younger implantation ages, especially before 18 months, lead to faster auditory gains and better long-term outcomes.

Area of Science:

  • Pediatric audiology
  • Otolaryngology
  • Developmental pediatrics

Background:

  • Cochlear implantation (CI) is increasingly performed at younger ages.
  • Assessing auditory development in young children post-CI presents challenges.
  • Parent-reported outcomes are valuable for evaluating infants and young children.

Purpose of the Study:

  • To investigate the longitudinal auditory development of Mandarin-speaking children with CIs.
  • To identify factors influencing auditory performance using the Parents' Evaluation of Aural/Oral Performance of Children (PEACH) questionnaire.
  • To compare outcomes based on age at cochlear implantation.

Main Methods:

  • A cohort of 187 Mandarin-speaking children with CIs was studied.
  • Children were grouped by age at implantation (<12, 13-18, 19-24, 25-42, >42 months).
  • Longitudinal data collected using the Chinese PEACH questionnaire up to 60 months post-CI activation, analyzed with a linear mixed-effects model.

Main Results:

  • PEACH scores plateau after approximately 20 months of CI use.
  • Children implanted younger showed faster auditory improvements, particularly those implanted before 18 months.
  • Key factors influencing performance included age at implantation, CI duration, development quotient, and preoperative hearing levels.

Conclusions:

  • Early cochlear implantation is crucial for optimal auditory development and functional outcomes.
  • Younger implantation age significantly accelerates auditory progress in children with CIs.
  • Late-implanted children face greater challenges in auditory development, highlighting the importance of timely intervention.