What you said describes the results of auditory brainstem evoked potentials. Because the peripheral auditory organs and auditory pathway of newborns are immature, the latency of each wave is longer than that of adults, especially for 1 wave. The latency between I-V waves is about 1ms longer than that of adults, and the shape of each wave is basically close to that of adults 1 year.
However, ABR results are also influenced by gestational age and other physiological and pathological factors.