Figure 5
From: Human Cochlear Histopathology Reflects Clinical Signatures of Primary Neural Degeneration
High-low grouping of audiometric test frequencies reveals a significant interaction between total neuronal loss (% of age-based mean) and hearing thresholds (dB HL) (n = 30 ears). Low frequencies, 0.2–2 kHz (6.8 dB HL mean threshold increase per 10% total neuronal loss); high frequencies, 4–8 kHz (4.8 dB HL mean threshold increase per 10% total neuronal loss); p = 0.007. Solid lines, linear regressions per low or high frequency grouping; shaded areas, 95% confidence intervals. UCL, upper confidence limit; LCL, lower confidence limit.
