FIGURE 4.

Distortion product otoacoustic emissions (DPOAEs) and not pure tone average (PTA) predicts cognitive impairment in normal and mild hearing loss individuals. (A) Five‐fold cross‐validation using PTA (green, area under the curve [AUC] = 0.45) and DPOAE (blue, AUC = 0.81) to predict cognitive impairment (Clinical Dementia Rating Sum of Boxes [CDR‐SoB] ≥0.5). (B) Boxplot comparing 1000 bootstrap AUC scores, depicting that PTA values significantly predict worse than DPOAEs (Mann‐Whitney U test p‐value < 0.0001).