Table 4. PDVFS.
| Parameter | Definitions | Coded value | Score |
|---|---|---|---|
| Mastication | Mastication is slow, hesitant, and delayed with ineffectual movements | Intact | 0 |
| Inadequate | 4 | ||
| Lingual motility prior to transfer | Tongue movement assisting mastication and bolus formation | Intact | 0 |
| Inadequate | 2 | ||
| Aspiration | Entry of bolus into the lower respiratory tract | Absent | 0 |
| Present | 3 | ||
| Total swallow time | From the initiation of mastication until the tail of the bolus passed through the upper esophageal sphincter | ≤10 sec. | 0 |
| >10 sec. | 3 | ||
| Total | 12 |