Fig 5.

Pediatric subjects with unilateral sensory hearing loss have improved perception of speech in quiet and noise, improved perception of spatial or directional hearing and improved sound quality following cochlear implantation. Subjects undertook the pediatric version of the SSQ. The SSQ questionnaire assesses subjective performance in three domains, hearing speech in quiet and noisy environments, spatial or directional hearing, and sound qualities. Each item is rated on a 10‐point Likert scale. Domain scores represent an average of item ratings. The questionnaire was completed at the pre‐operative interval and the 3, 6, 9, and 12‐month post‐activation intervals. A Friedman test for non‐parametric data (P = .0010 for speech, P < .0001 for spatial and P = .0030 for qualities of hearing) with post hoc Dunn's multiple comparisons was performed to compare changes at the different intervals tested. Each interval is compared with preoperative values. Significance levels: *<0.05, **<0.001, ***<0.0001, NS = non‐significant.