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Participant characteristics
| Group A | Group B | P value | |
|---|---|---|---|
| Number of patients | 101 | 33 | — |
| Age (years) | 61.96 ± 9.06 | 61.03 ± 10.85 | .6274 |
| Sex (number of male/female) | 56/45 | 21/12 | .4087 |
| MDS‐UPDRS III score | 50.51 ± 17.62 | 51.18 ± 16.19 | .8477 |
| VHI score | 25.52 ± 21.42 | 24.36 ± 20.50 | .7852 |
Abbreviations: MDS‐UPDRS III, part III of Movement Disorder Society‐Sponsored Revision of the Unified Parkinson's Disease Rating Scale; VHI, voice handicap index.
