Application of a low-cost instrument to identify risk for hearing disorders in a municipal health network

Monize Menon1, Seisse Gabriela Gandolfi Sanches1, Alessandra Giannella Samelli1

  • 1Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina, Universidade de São Paulo - USP - São Paulo (SP), Brasil.

Codas
|August 6, 2026
PubMed

Insights

The PETIT application, an automated tablet-based hearing screening, shows high accuracy (99.18%) in identifying hearing impairment risk in school children, outperforming traditional methods.

Area of Science:

  • Pediatric Audiology
  • Public Health Screening
  • Educational Technology

Background:

  • Hearing impairment affects school-aged children, impacting development and learning.
  • Early identification of hearing loss is crucial for timely intervention.
  • Conventional screening methods may have limitations in accuracy and efficiency.

Purpose of the Study:

  • To compare the performance of the PETIT application (automated tablet-based screening) with conventional sweep screening.
  • To evaluate the effectiveness of PETIT in identifying hearing impairment risk in school-aged children.
  • To assess the utility of passive noise-canceling headphones in automated hearing screening.

Main Methods:

  • A cross-sectional observational study involving 122 children (5-8 years old).
  • Procedures included otoscopy, automated tablet-based screening (PETIT) with noise-canceling headphones, and conventional sweep screening.
  • Statistical analysis involved logistic regression, sensitivity, specificity, and accuracy calculations. Pure-tone audiometry was used for a subset of participants.

Main Results:

  • Significant association found between PETIT and sweep screening results.
  • PETIT demonstrated high performance: 85.7% sensitivity, 100% specificity, and 99.18% accuracy.
  • Conventional audiometry was a significant predictor for sweep screening performance.

Conclusions:

  • The PETIT application shows promising applicability for school-based hearing impairment screening.
  • Automated tablet-based screening offers a highly accurate and efficient alternative.
  • This technology can aid in the early identification of hearing risks in children.
Abstract

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