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Relationship between the evolution of the stroboscopic parameters and the clinical course
| Parameter | Clinical improvement (57 patients) | No clinical improvement (8 patients) | Chi square (P value) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Worse | Same | Better | Total | Worse | Same | Better | Total | ||
| Glottal closure | 3 | 34 | 20 | 57 | 0 | 8 | 0 | 8 | 0.043 |
| Fold vibration | 3 | 34 | 20 | 57 | 1 | 4 | 3 | 8 | 0.59 |
| Mucosal wave | 1 | 39 | 17 | 57 | 1 | 5 | 2 | 8 | 0.57 |
| Phase symmetry | 0 | 49 | 8 | 57 | 1 | 4 | 3 | 8 | 0.126 |
