| PPPD | Persistent Postural-Perceptual Dizziness |
| VRT | vestibular rehabilitation therapy |
| CBT | cognitive behavioral therapy |
| RCT | randomized control trial |
| DHI | dizziness Handicap Inventory |
| HRQoL | physical health-related quality of life |
| GEE | Generalized Estimating Equations |
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