Related Experiment Video
Updated: Jul 3, 2026

14:05
Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
Newborn hearing screening: the relation between bathing and the retesting rate
Tatiana Redeschi Marques1, Patrícia Christina Mendes, Cristiane Franceschi Pineroli Bochnia
1Universidade Tuiuti, Paraná, Brazil.
Brazilian Journal of Otorhinolaryngology
|July 29, 2008
Summary
Newborn hearing screening retesting rates can be reduced by considering bath timing. A longer interval between a baby's bath and hearing tests, and careful bathing practices, are key to lowering retest rates in newborn hearing screening programs.
Area of Science:
- Audiology
- Pediatrics
- Public Health
Background:
- Newborn Hearing Screening Programs (NHSP) aim for low retesting rates.
- Understanding factors influencing retest rates is crucial for effective screening.
Purpose of the Study:
- To investigate the association between newborn baby baths and hearing screening retest rates.
- To identify specific bathing-related factors impacting the retesting rate in NHSP.
Main Methods:
- A cross-sectional cohort study was conducted.
- Transient otoacoustic emissions (TOE) results were analyzed in relation to bathing by specific aides and the time interval between bathing and testing (373 and 350 newborns, respectively).
Main Results:
- Significant differences in retesting rates were observed based on which nurse's aide bathed the newborns.
- Retesting percentages decreased significantly when the time between the last bath and the TOE study exceeded 7 hours and 50 minutes.
Conclusions:
- External acoustic meatus moisture from inadequate protection during bathing may contribute to retesting.
- A short interval between bathing and the otoacoustic emissions test is a potential factor for retesting in NHSP.

