TABLE 2.
Linear regression associating ASI and PANAS-X-NA scores with percentage of time in PD
| Variable | β | t | P |
|---|---|---|---|
| First model | |||
| Percentage of time in panic | |||
| Previous time in panic | 0.64 | 6.19 | <.0001 |
| MDD | 8.70 | 1.41 | 0.1608 |
| Comorbid anxiety | 3.73 | 0.68 | .4990 |
| CBT | −0.23 | −0.03 | .9739 |
| BZ/SSRI treatment | 15.05 | 2.48 | .0145 |
| Second model | |||
| Percentage of time in panic | |||
| ASI-Total | 0.77 | 3.22 | .0016 |
| PANAS-X-NA | 0.26 | 0.73 | .4685 |
| Previous time in panic | 0.62 | 6.24 | <.0001 |
| MDD | 4.56 | 0.73 | .4640 |
| Comorbid anxiety | −0.89 | −0.16 | .8698 |
| CBT | −1.66 | −0.24 | .8099 |
| BZ/SSRI treatment | 13.49 | 2.29 | .0238 |
| Third model | |||
| Percentage of time in panic | |||
| ASI-Physical | 1.03 | 2.21 | .0287 |
| ASI-Mental | 0.43 | 0.49 | .6220 |
| ASI-Social | 0.39 | 0.35 | .7278 |
| PANAS-X-NA | 0.28 | 0.78 | .4347 |
| Previous time in panic | 0.62 | 6.15 | <.0001 |
| MDD | 5.02 | 0.79 | .4292 |
| Comorbid anxiety | 0.34 | 0.06 | .9527 |
| CBT | −1.13 | −1.16 | .8717 |
| BZ/SSRI treatment | 13.45 | 2.25 | .0259 |
PD, panic disorder; MDD, major depression disorder; CBT, cognitive behavior therapy; BZ, benzodiazepines; SSRI, selective serotonin reuptake inhibitors; ASI-Total, Anxiety Sensitivity Index; ASI-Physical, Physical Concern subscale of the ASI; ASI-Mental, Mental Incapacitation Concerns subscale of the ASI; ASI-Social, Social Concern subscale of the ASI; PANAS-X-NA, Negative Affect Scales of the Positive and Negative Affect Schedule, Expanded Form.