highly significantp < 0.001
Dizziness Handicap Inventory The DHI data revealed that there was a highly significant improvement pre- versus postoperatively (repeated measures ANOVA, F (1,11) = 254.6, p < 0.001) overall and for each group (Fig. 2 ), but no significant difference between patient groups (repeated measures ANOVA, F (2,11) = 1.8, p > 0.2).