Transient evoked otoacoustic emissions in two-month-old infants: A normative study

Researchers have recently reported the effects of age, sex, ear asymmetry, and subject's activity status on transient evoked otoacoustic emissions (TE OAEs). The present study aimed to expand upon such reports by describing th e characteristics of TEOAE spectra obtained from a cohort of 607 two-month- old infants in community child health clinics. Results indicated significan t sex, ear and activity state effects on the signal:noise ratio, response. whole wave and band reproducibility values. These findings suggest the need for TEOAE normative data to be expressed as a function of sex, ear, and ac tivity state of infants. These characteristics of TEOAE spectra may shape f uture investigations into appropriate pass-fail criteria for two-month-old infants.