Fig. 4

Correlations between hearing thresholds for males and females. Bars represent Pearson’s R correlations across ears at single test frequencies (left hand bars), between adjacent test frequencies in the left ear (middle bars) and between adjacent frequencies in the right ear (right-hand bars). Stars indicate significant differences in correlation for males vs. females (*p < 0.05; **p < 0.01, ***p < 0.001)