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Population-based cross-sectional study to assess newborn hearing screening program in central Germany.

Anke Rissmann1, Andrea Koehn1, Marja Loderstedt2

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Early diagnosis of congenital hearing loss is crucial for speech development. A population-based newborn hearing screening program in Saxony-Anhalt successfully identified hearing-impaired infants promptly, enabling timely intervention.

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Area of Science:

  • Audiology
  • Public Health
  • Pediatrics

Background:

  • Early diagnosis of congenital hearing loss is essential to mitigate speech development issues.
  • Newborn hearing screening (NHS) and follow-up are critical for timely intervention in hearing-impaired children.

Purpose of the Study:

  • To evaluate the outcomes of a population-based newborn hearing screening program over its first six years.
  • To assess the effectiveness of the screening and tracking process in identifying hearing loss in newborns.

Main Methods:

  • A cross-sectional cohort study included 102,301 infants born between 2010-2015.
  • Screening utilized Transient Evoked Otoacoustic Emissions (TEOAE) and Automated Auditory Brainstem Response (AABR) based on audiological risk factors.
  • Data from hearing-impaired children up to age three were analyzed to assess screening quality and false-negative rates.

Main Results:

  • 98.8% of infants were screened, with a bilateral neonatal hearing loss prevalence of 2.32 per 1000 newborns.
  • Median age at screening was 2 days, diagnosis at 3 months, and intervention at 4 months.
  • The NHS program demonstrated a sensitivity of 0.85 and specificity of 0.84.

Conclusions:

  • The newborn hearing screening program effectively meets its primary objective of timely identification of hearing-impaired newborns.
  • The program's benchmarks and outcomes indicate successful implementation in Saxony-Anhalt.