Relationship between ABR and Hearing Loss Variables

Abstract

This study evaluated whether changes in ABR wave latencies can be predicted from the threshold audiogram in combination with age, sex and stimulation level by canonic correlation.
The canonic correlation for 536 subjects was 0.66 for the first canonic pair. With all six canonic variables, only 32% of the raw ABR varience could be explained by the hearing loss. The second variable accounted for 22%, showing the greatest effect of hearing loss on the ABR. Analysis of component loading received that: 1) wave I latency correlated with the slope of the hearing loss between 2000 and 8000 Hz, with the severity of the hearing loss at 4000 and 8000 Hz, and with sex; 2) age, sex and low-frequency hearing loss correlated with the I-V and III-V interwave latencies.