Advanced Bionics Naida CI Q70 Gebrauchsanweisung Seite 34

programs were required for activation and successful
use of the sound-cleaning and beamforming features.
Statistical analyses showed that sentence understanding
in quiet and in speech-spectrum noise with the
features enabled was no worse than in the baseline
conditions (non-inferiority margin of 10; WindBlock,
SoundRelax, EchoBlock, auto UltraZoom, combined
SoundRelax+WindBlock+auto UltraZoom, non-inferiority
p-value < .0001; StereoZoom, non-inferiority p-value
< 0.05). A critical difference score was used to determine
whether individual subjects demonstrate a significant
change in performance between the Baseline-Acute
scores with his/her commercial owned sound processor
and Naída CI Q90 sound processor. The value for the
critical difference score is based upon the test-retest
variance on the AzBio Sentence test. One subject (out
of 18) had worse score difference between post-fitting
and baseline testing for AzBio sentence test in noise with
the combined features, however, the single or combined
features were acceptable to this subject throughout the
four-week trial period. Subjects who were dissatisfied
with the new front-end processing features (single or
combination) during the four-week trial period did not
show worse AzBio sentence recognition scores with the
new front-end-processing features turned on compared
to off. Table 3 shows WindBlock, SoundRelax, EchoBlock,
and combined SoundRelax+WindBlock+auto UltraZoom
was no worse than in the baseline conditions (p < .0001).
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