TABLE III.
Regression Results of Subjective Questionnaires Against Time.
| β (95% Confidence Interval) | P Value | |
|---|---|---|
| QUEST total score | ||
| Visit 1 | Reference | |
| Visit 2 | −9.91 (−27.00 to 7.17) | .25 |
| Visit 3 | −15.81 (−33.74 to 2.10) | .08 |
| VRQOL total score | ||
| Visit 1 | Reference | |
| Visit 2 | 9.31 (−6.91 to 25.12) | .25 |
| Visit 3 | 21.94 (4.94 to 38.95) | .01* |
Visit 3 (botulinum toxin injections) represented a statistically significant improvement in VRQOL as compared to baseline voice.
*
Statistically significant at the P = .05 level.
QUEST = Quality of Life in Essential Tremor questionnaire; VRQOL = Voice-Related Quality-of-Life questionnaire.