In Brief:
Overall TEOAE levels and half-octave frequency bands centered at 1.5, 2, 3, and 4 kHz were measured for 79 neonates before leaving the hospital and again at 1 mo of age. TEOAE levels increased between test sessions, with greater increases in higher frequency bands. Infants who failed the screening at birth but passed at 1 mo had significantly lower TEOAEs at the rescreening than infants who passed at birth, although pass status was only a weak predictor of TEOAEs at 1 mo. No significant correlation was found between TEOAE changes and judgments of ear-canal debris.
