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Phonation Threshold Pressure (PTP) and Phonation Threshold Flow (PTF) Data.
| Posterior Glottal Width (mm) |
PTPonset (cm H2O) |
PTPoffset (cm H2O) |
PTFonset (mL/s) |
PTFoffset (mL/s) |
||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| 0.0 | 5.29 | 2.42 | 4.27 | 2.30 | 455 | 267 | 382 | 212 |
| 0.5 | 5.20 | 2.16 | 4.14 | 1.91 | 447 | 213 | 389 | 178 |
| 1.0 | 4.65 | 2.66 | 3.77 | 2.31 | 400 | 253 | 370 | 256 |
| 2.0 | 4.32 | 2.84 | 3.54 | 2.81 | 400 | 200 | 371 | 210 |
| 3.0 | 4.56 | 3.40 | 3.82 | 3.20 | 488 | 352 | 447 | 335 |
SD = standard deviation.
