Developmental changes in static admittance and tympanometric width in infants and toddlers.
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.
Roush
J
J
Division of Speech and Hearing Sciences, University of North Carolina School of Medicine, Chapel Hill, USA.
Bryant
K
K
Mundy
M
M
Zeisel
S
S
Roberts
J
J
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