title: Developmental changes in static admittance and tympanometric width in infants and toddlers.
abstract: Longitudinal measures of peak-compensated static acoustic admittance and tympanometric width are reported for infants and toddlers from 6 months to 30 months of age, based on over 1600 assessments of 88 children during a 24-month period. The subjects were all African-American children in full-time day care. Significant age effects were observed, with younger children displaying lower static admittance values and wider tympanograms. The results of this investigation underscore the importance of age- and population-specific norms when using acoustic admittance measures to evaluate middle ear status in children.
authors.affiliation: Division of Speech and Hearing Sciences, University of North Carolina School of Medicine, Chapel Hill, USA.
authors.forename: J
authors.initials: J
authors.lastname: Roush
authors.forename: K
authors.initials: K
authors.lastname: Bryant
authors.forename: M
authors.initials: M
authors.lastname: Mundy
authors.forename: S
authors.initials: S
authors.lastname: Zeisel
authors.forename: J
authors.initials: J
authors.lastname: Roberts
mesh_terms: D000158:Acoustic Impedance Tests; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010033:Otitis Media / Q000150:complications; D013064:Speech Disorders / Q000175:diagnosis* / Q000209:etiology