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Hearing disabled children--epidemiology and identification.

A Parving1

  • 1Department of Audiology, Bispebjerg Hospital, Copenhagen, Denmark.

Scandinavian Audiology. Supplementum
|January 1, 1988
PubMed
Summary

The incidence of childhood hearing loss remains stable, but identification is delayed despite improvements. Parents most often suspect hearing disability first.

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Two families with phenotypically different hereditary low frequency hearing impairment: longitudinal data and linkage analysis.

Scandinavian audiology·2002

Area of Science:

  • Pediatrics
  • Audiology
  • Public Health

Background:

  • Congenital/early acquired hearing disability in children requires ongoing epidemiological evaluation.
  • Previous studies from the 1970s provide a baseline for comparison.
  • Understanding identification timelines and parental suspicion is crucial for early intervention.

Purpose of the Study:

  • To assess the prevalence and incidence of childhood hearing loss in Copenhagen.
  • To compare current data with 1970s findings.
  • To determine the age of identification and the role of parents in detection.

Main Methods:

  • A population-based investigation of hearing-impaired children in Copenhagen City and County.
  • Analysis of prevalence and incidence rates over a defined period.
  • Evaluation of identification age and suspected source of hearing disability.

Main Results:

  • Prevalence of hearing aid use decreased by 40-42%, while incidence remained stable at 0.13%.
  • Median age of identification was 15-18 months; 32-48% identified by age 1 (improvement from 15-16% in the 1970s).
  • Parents suspected hearing disability in 57-67% of cases; at-risk children were not identified earlier.

Conclusions:

  • The incidence of congenital/early acquired hearing disability in children has not changed over a decade.
  • Delayed identification persists, although early detection has improved.
  • Parental suspicion plays a significant role in identifying hearing-impaired children.

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