Table 5.
Prediction of Challenge Recovery.
| β | df | t | p | |
|---|---|---|---|---|
| Dependent Variable: SUDS | ||||
| Intercept | 13.91 | 114 | 3.03 | < .01 |
| Time (Slope) | −2.4 | 1188 | −7.65 | < .001 |
| ASI-III | .28 | 114 | 2.38 | < .05 |
| Panic Attack Group | 7.02 | 114 | 2.39 | < .05 |
| BFI-N | .42 | 114 | .46 | ns |
| Sex | 1.53 | 114 | .46 | ns |
| Time (slope) × Sex | −.26 | 1188 | −.66 | ns |
| Dependent Variable: Heart Rate | ||||
| Intercept | 79.53 | 108 | 22.59 | < .001 |
| Time (Slope) | −.44 | 1110 | −2.27 | < .05 |
| ASI-III | −.03 | 108 | −.30 | ns |
| Panic Attack Group | 2.93 | 108 | 1.39 | ns |
| BFI-N | .14 | 108 | .83 | ns |
| Sex | 7.92 | 108 | 2.91 | < .05 |
| Time (slope) × Sex | −.94 | 1110 | −3.83 | < .001 |
| Dependent Variable: Skin Conductance Level | ||||
| Intercept | 3.94 | 108 | 6.87 | < .001 |
| Time (Slope) | −.10 | 1115 | −5.57 | < .001 |
| ASI-III | −.00 | 108 | −.24 | ns |
| Panic Attack Group | .62 | 108 | 1.71 | ns |
| BFI-N | −.03 | 108 | −1.17 | ns |
| Sex | .20 | 108 | .52 | ns |
| Time (slope) × Sex | −.00 | 1115 | −.02 | ns |
Note: ASI-III = Anxiety Sensitivity Index – III total score (Taylor et al., 2007); Avoidance Rating = Self-reported willingness to complete additional CO2 challenge (0 = not at all willing, 100 = extremely willing; Eifert & Heffner, 2003); BFI-N = Big Five Inventory – Neuroticism subscale (John & Srivastava, 1999); PA Group = Panic attack group status [i.e., meets criteria for a past 2-year history of nonclinical, unexpected panic attacks (1 = no, 2 = yes; First et al., 1994); Sex (1 = men, 2 = women); HR = Heart Rate – averaged per minute of recovery; SCL = Skin Conductance Level – averaged per minute of recovery (in Microsiemens); SUDS - Subjective Units of Distress Scale (Wolpe, 1958).