Table 1. Demographic information.
| Measure | Control | CI users |
|---|---|---|
| Number of subjects (# of females) | 18 (11) | 20 (11) |
| Mean age at test in years (std) | 57.57 (12.74) | 56.80 (14.09) |
| Mean years of CI use (std) | – | 8.10 (6.51) |
| Mean speech perception score (AzBio sentences in quiet) (std) | 0.99 (0.01) | 0.88 (0.09) |
| Mean right ear 4fPTA (std) | 16.02 (6.74) | 21.85 (5.30) with CI on |
| Mean left ear 4fPTA (std) | 16.61 (7.67) | 91.25 (26.77) unaided |
| Mean left ear 4fPTA at test*,† (std) | – | 73.28 (37.72) |
| Mean duration of deafness right ear | – | 12.58 (11.74) |
If no response at a given frequency, a value of 120 dB HL was assigned.
*
With hearing aid, if the subject used amplification. Eight out of 20 CI (cochlear implant) users used hearing aids.
†
4fPTA (four-frequency pure-tone average), average pure tone threshold at four frequencies (500, 1000, 2000, 4000 Hz).