Figure 3
Asymmetry in speech perception between each ear tested in quiet and noise. (a) Speech perception in rationalized arcsine units (RAU) of the ear with the hearing aid (HA) or second cochlear implant (CI2) was worse than that of the first implanted ear (CI1) for all but the simultaneous groups when measured in quiet or +10 dB SNR noise, as indicated by ±1 SD (68% of data) ellipses residing below the gray unity lines. Concordance correlation coefficients (Rc) and number of children (n) are provided for each group and condition; asterisks indicate when the 95% confidence interval of the Rc estimate does not cross zero. (b) Mean (±SE) asymmetry in speech perception (RAU) was greatest in bimodal and sequential bilateral CI users and smallest in young simultaneous bilateral CI users. Positive values indicate better scores for CI1. Gray lines denote post-hoc Tukey HSD comparisons with p < 0.05. CNT = could not test (too few children); CI = cochlear implant; HA = hearing aid.
