Hearing Aid Use, Auditory Development, and Auditory Functional Performance in Swedish Children With Moderate Hearing Loss During the First 3 Years.

Abstract

Purpose This study investigated longitudinal hearing aid (HA) use in a cohort of children with moderate hearing loss (CHL), fitted with amplification before the age of 6 months. Additionally, the relationship of HA use and aided audibility on outcomes of parental questionnaires of auditory skills was examined, and these outcomes were compared to a group of children with normal hearing (CNH). Method Nine CHL and 29 CNH and their parents participated in the study. Measures were collected at initial fitting, 10, 18, 24, 30, and 36 months of age. Parents reported hours of HA use and situations the HAs were used. Datalogging and speech intelligibility index were also collected. Auditory skills were measured through parental questionnaires. Results The mean hours of HA use/day for this cohort increased from 7.55 at the ages of 10 months to 10.15 at 36 months according to datalogging. Parental estimations of hours of HA use and in which situations varied between subjects. Correlations between HA use from datalogging and speech intelligibility index to measures of auditory skills were weak. CHL showed similar results to CNH on auditory development at the ages of 10, 18, and 24 months but presented with significantly lower scores on auditory functional performance in noise at 30 and 36 months of age. Conclusions Longitudinal monitoring of HA use from fitting of amplification with the combination of objective and subjective tools may have a positive impact on HA use in CHL. The lower scores on listening in noise compared to CNH call for further attention.