Figure 6
From: Human Cochlear Histopathology Reflects Clinical Signatures of Primary Neural Degeneration
Relationship between pure tone average (dB HL) and total neuronal loss (% of age-based mean) in severe neural degeneration. (a) Normal presbycusis (n = 33 ears, published in Makary et al., 2011); (b) severe neural degeneration (n = 30 ears). In patients with severe neural degeneration, mean hearing thresholds increase by 6.9 dB HL per 10% total neuronal loss. Shaded area, 95% confidence interval; UCL, upper confidence limit; LCL, lower confidence limit.
