Table 1.
Percentiles (25th, 50th, 75th) of the distributions of temporal measures for patients at baseline, patients at 3 months, and controls. n = number of swallows.
| Patients, baseline
|
Patients, 3 mo
|
Controls
|
||||
|---|---|---|---|---|---|---|
| n | 25th, 50th, 75th | n | 25th, 50th, 75th | n | 25th, 50th, 75th | |
| Oral onset of swallow (s) | 286 | −1.34, −0.87, −0.52 | 263 | −1.55, −0.92, −0.57 | 219 | −1.75, −1.22, −.80 |
| Duration of oral transit time (s) | 347 | 0.22, 0.31, 0.47 | 306 | 0.23, 0.33, 0.55 | 801 | 0.22, 0.31, 0.44 |
| Duration of pharyngeal transit time (s) | 345 | 0.65, 0.72, 0.84 | 302 | 0.65, 0.76, 0.90 | 799 | 0.58, 0.70, 0.83 |
| Duration of pharyngeal delay (s) | 346 | −0.18, −0.12, −0.03 | 306 | −0.17, −0.10, −0.01 | 802 | −.20, −0.12, 0.00 |
| Duration of tongue base contact to PPW at level of mid-C2 (s) | 345 | 0.28, 0.35, 0.46 | 307 | 0.28, 0.40, 0.50 | 378 | 0.30, 0.37, 0.45 |
| Duration of tongue base contact to PPW at level of inferior C2 (s) | 347 | 0.23, 0.30, .040 | 307 | 0.19, 0.32, 0.47 | 372 | 0.24, 0.30, 0.37 |
| Duration of tongue base contact to PPW at level of superior C3 (s) | 347 | 0.19, 0.26, 0.37 | 306 | 0.18, 0.29, 0.42 | 354 | 0.20, 0.24, 0.31 |
| Duration of velopharyngeal closure (s) | 339 | 0.47, 0.57, 0.71 | 299 | 0.56, 0.68, 0.90 | 788 | 0.53, 0.65, 0.85 |
| Duration of laryngeal closure (s) | 339 | 0.37, 0.46, 0.57 | 305 | 0.43, 0.52, 0.65 | 800 | 0.40, 0.50, 0.63 |
| Duration of cricopharyngeal opening (s) | 347 | 0.45, 0.53, 0.60 | 303 | 0.47, 0.54, 0.62 | 799 | 0.42, 0.50, 0.58 |
| Duration of laryngeal elevation (s) | 347 | 0.95, 1.08, 1.28 | 306 | 0.94, 1.09, 1.31 | 802 | 0.92, 1.03, 1.22 |
| Duration of hyoid elevation (s) | 349 | 0.94, 1.08, 1.23 | 307 | 0.93, 1.08, 1.27 | 803 | 0.91, 1.03, 1.19 |
| Onset base of tongue to posterior pharyngeal wall (s) | 345 | 0.10, 0.13, 0.17 | 282 | 0.10, 0.15, 0.20 | 376 | 0.08, 0.11, 0.15 |
| Time from first airway closure to first cricopharyngeal opening (s) | 347 | −0.04, 0.01, 0.07 | 305 | −0.04, 0.02, 0.07 | 375 | −0.08, −0.03, 0.01 |
| Oral residue (% of bolus) | 349 | 1, 2, 5 | 303 | 1, 4, 6 | 803 | 0, 0, 1 |
| Pharyngeal residue (% of bolus) | 350 | 2, 3, 7 | 307 | 4, 6, 12 | 804 | 0, 0, 2 |
| Aspiration (% of bolus aspirated) | 351 | 0, 0, 0 | 307 | 0, 0, 0 | 804 | 0, 0, 0 |
| Oropharyngeal swallow efficiency (%/s) | 343 | 64, 85, 100 | 297 | 49, 72, 94 | 797 | 74, 94, 114 |
| Number of attemps to swallow 1st bolus | 348 | 1, 1, 2 | 303 | 1, 2, 2 | 804 | 1, 1, 1 |
Abbreviations: n, number of swallows; PPW, posterior pharyngeal wall.