Table A2.
Linear mixed-effects Model 2 results quantifying the impact of pitch level on the linear relationship between subglottal pressure and accelerometer (ACC) signal magnitude within each phonatory condition.
| Condition | Estimate ± SE | Estimate ± SE wrt Comf | df | p | r |
|---|---|---|---|---|---|
| Females | |||||
| Modal | |||||
| Intercept (cm H2O) | |||||
| Comf | 2.87 ± 0.72 | — | — | — | — |
| High | — | 0.99 ± 0.26 | 4916.54 | < .001* | .05 |
| Low | — | −0.57 ± 0.25 | 4917.27 | .02 | .03 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 13.44 ± 2.15 | — | — | — | — |
| ACC × High | — | −2.13 ± 0.40 | 4916.40 | < .001* | .08 |
| ACC × Low | — | 0.48 ± 0.56 | 4916.42 | .39 | .01 |
| Breathy | |||||
| Intercept (cm H2O) | |||||
| Comf | 5.64 ± 0.25 | — | — | — | — |
| High | — | 0.17 ± 0.38 | 4915.25 | .66 | .08 |
| Low | — | 0.29 ± 0.37 | 4915.80 | .42 | .01 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 11.20 ± 0.43 | — | — | — | — |
| ACC × High | — | 0.39 ± 0.59 | 4915.29 | .66 | .01 |
| ACC × Low | — | −2.35 ± 0.79 | 4915.66 | .42 | .04 |
| Strained | |||||
| Intercept (cm H2O) | |||||
| Comf | 4.60 ± 0.26 | — | — | — | — |
| High | — | −0.55 ± 0.38 | 4916.52 | .15 | .02 |
| Low | — | 0.26 ± 0.37 | 4916.23 | .49 | .01 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 13.06 ± 0.41 | — | — | — | — |
| ACC × High | — | 1.98 ± 0.54 | 4915.39 | < .001* | .05 |
| ACC × Low | — | 1.93 ± 0.75 | 4915.28 | .012* | .04 |
| Males | |||||
| Modal | |||||
| Intercept (cm H2O) | |||||
| Comf | 2.84 ± 0.44 | — | — | — | — |
| High | — | −0.52 ± 0.28 | 2773.70 | .07 | .03 |
| Low | — | 1.78 ± 0.25 | 2776.71 | < .001* | .13 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 28.58 ± 15.71 | — | — | — | — |
| ACC × High | — | 1.58 ± 0.47 | 2771.49 | .02 | .03 |
| ACC × Low | — | −2.29 ± 0.54 | 2770.57 | .04 | .05 |
| Breathy | |||||
| Intercept (cm H2O) | |||||
| Comf | 4.26 ± 0.28 | — | — | — | — |
| High | — | 1.01 ± 0.42 | 2771.49 | .02 | .05 |
| Low | — | −0.83 ± 0.41 | 2770.57 | .04 | .04 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 27.76 ± 0.54 | — | — | — | — |
| ACC × High | — | −2.00 ± 0.74 | 2770.88 | .01* | .05 |
| ACC × Low | — | 4.22 ± 1.09 | 2771.17 | < .001* | .07 |
| Strained | |||||
| Intercept (cm H2O) | |||||
| Comf | 7.69 ± 0.28 | — | — | — | — |
| High | — | 0.73 ± 0.42 | 2770.32 | < .001* | .03 |
| Low | — | −1.99 ± 0.40 | 2774.34 | .09 | .09 |
| Slope ([cm H2O]/[cm/s2]) | |||||
| ACC × Comf | 30.34 ± 0.61 | — | — | — | — |
| ACC × High | — | −1.40 ± 0.82 | 2771.72 | .09 | .03 |
| ACC × Low | — | −0.41 ± 0.93 | 2774.52 | .66 | .01 |
Note. For the comfortable pitch (Comf) reference condition within each phonatory condition, the estimates of intercept and slope are shown. For the high- and low-pitch conditions, the estimates of intercept and slope are shown with reference to (wrt) those for the comfortable pitch category within each phonatory condition. The standard error (SE), degrees of freedom (df), p value, and effect size (r) are reported for each estimate. Em dashes indicate data not applicable. All slope values were multiplied by 1,000 for readability. The values in the high- and low-pitch columns are in reference to the associated comfortable pitch estimates within each phonatory condition.
p < .0125.