Table 6.
SPIROMETRY DURING psychophysiological test SESSIONS: MIXED MODELS MAIN EFFECTS AND INTERACTIONS
| Measure | Effect | SESSION | PREPOST BFK | PREPOST BFK × SESSION | GROUP × SESSION | GROUP × SESSION | GROUP × PREPOST BFK × SESSION | PREPOST ALBUTEROL |
|---|---|---|---|---|---|---|---|---|
| FEV1 | F | 2,92 | 0.97 | 0.35 | 0.98 | 1.2 | .01 | 312.63 |
| Df | 2,105 | 1,67 | 2,97 | 2,105 | 1,67 | 2,97 | 1,65 | |
| P | 0.06 | n.s. | n.s. | n.s. | n.s. | n.s. | <.0001 | |
| PEF | F | 0.98 | 1.06 | 1 | 0.86 | 0.75 | 0.51 | 173.36 |
| Df | 2,105 | 1,67 | 2,97 | 2,105 | 1,67 | 2,97 | 1,65 | |
| P | n.s. | n.s. | n.s. | n.s. | n.s. | n.s. | <.0001 | |
| FEV1/FVC | F | 1.82 | 0.16 | 4.04 | 1.17 | 0.01 | 1.77 | 175.33 |
| Df | 2,105 | 1,67 | 2,97 | 2,105 | 1,67 | 2,97 | 1,65 | |
| P | n.s. | n.s. | 0.03 | n.s. | n.s. | n.s. | <.0001 | |
| FVC | F | 3.9 | 0.09 | 7.13 | 0.94 | 2.18 | 1.46 | 48.38 |
| Df | 2,105 | 1,67 | 2,97 | 2,105 | 1,67 | 2,97 | 1,65 | |
| P | 0.03 | n.s. | 0.002 | n.s. | n.s. | n.s. | <.0001 |
Data are from mixed models repeated measures analyses. Sessions refers to the three psychophysiological testing sessions during the treatment protocol. “Prepost bfk” refers to spirometry conducted at the beginning of the session vs. after the post-biofeedback vanilla baseline task. “Prepost albuterol” refers to the post-biofeedback vanilla task vs. 15 minutes after a dose of albuterol.