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Useful information derived from BAER waveforms include: a) presence or absence of waveform components, b) latency, and c) latency intervals between components (especially Waves I, III, and V). BAER analyses using click intensities 75dB above adult thresholds recorded ipsilaterally were obtained from 41 neonates ()30 weeks' gestation) suspected of hypoxic brain injury. Also, an ultrasound scan was done near the time BAER tests were performed. Of 14 infants who showed absence of a reliable waveform, 12 had evidence of brain hemorrhage by ultrasound. In 27 infants, Waves I, III, and V were reliably detected. A linear discriminant function based on Wave I latency and the III-V latency interval was constructed that reliably predicted 85% (23) of the sonographic results. Thus, we found BAER analyses to be highly concordant with sonography (x 2 20.5, R <0.001). Birth