FIGURE 2.

Differential contributions of distortion product otoacoustic emissions (DPOAEs) and pure tone average (PTA) over cognition. (A) PTA correlates negatively with the number of DPOAEs, demonstrating that a larger number of DPOAEs is correlated with better PTA. (B) Correlation matrix with annotated Spearman's rho values in each cell, between audiological measures and Mini‐Mental Status Examination (MMSE), the Pfeffer questionnaire, and the Clinical Dementia Rating Sum of Boxes (CDR‐SoB). Only the correlation between CDR‐SoB and the number of DPOAEs was significant (p < 0.001). Color bar in the y‐axis represents the −log ₁₀ of the p‐value obtained from Spearman's rank correlation.