Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10519664 | Journal of Voice | 2012 | 5 Pages |
Abstract
The findings of this study are in agreement with previous data regarding the intrasubject variability of the DSI. Changes in DSI that exceed ±2.27-2.66 may be necessary to reflect significant changes in voice function. The observed test-retest variability in the DSI is relatively large in relation to the initially reported DSI range of +5 (normal voice) to â5 (severely disordered voice). Rather than the use of ±2 standard deviations (SDs) as a guideline for significant change (±2.27-2.66), DSI change of ±1.5 SDs may be clinically useful, resulting in a more liberal level of ±1.74 (within 1 week) to 2.04 (within 2 weeks) as a guideline for significant changes in voice function.
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Authors
Shaheen N. Awan, Sara A. Miesemer, Teresa A. Nicolia,