Sound transmission into incubators in the neonatal intensive care unit


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ABSTRACT OBJECTIVE: To measure the attenuation of sound by modern incubators. STUDY DESIGN: LEQ, LMAX, LPEAK, and frequency distribution were measured simultaneously inside and outside two


recent model incubators. RESULTS: The attenuation of sound (outside minus inside) was 15 to 18 dBA with the motor off and 4 to 8 dBA with the motor on. There was a significant difference


between incubators in their attenuation of sound. Octave band analysis showed attenuation in frequency bands of >31.5 Hz with the motor off. With the motor on, the sound level inside the


incubator was higher than outside at frequency bands of <250 Hz. CONCLUSION: Caring for infants inside modern incubators reduces “averaged” sound exposure to levels near those recommended


for the neonatal intensive care unit. Lower frequency sounds are louder inside the incubator and arise from the incubator motor. Access through your institution Buy or subscribe This is a


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AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Schools of Medicine (A. R., C. C.-P.) and Allied Health Science (P. V.), East Carolina University, Greenville, NC Alex Robertson MD, Celeste


Cooper-Peel MA CHES & Paul Vos PhD Authors * Alex Robertson MD View author publications You can also search for this author inPubMed Google Scholar * Celeste Cooper-Peel MA CHES View


author publications You can also search for this author inPubMed Google Scholar * Paul Vos PhD View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND


PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Robertson, A., Cooper-Peel, C. & Vos, P. Sound Transmission Into Incubators in the Neonatal Intensive Care


Unit. _J Perinatol_ 19, 494–497 (1999). https://doi.org/10.1038/sj.jp.7200258 Download citation * Published: 15 December 1999 * Issue Date: 01 October 1999 * DOI:


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