Table 1.
Pretreatment Levels of Demographic and Clinical Characteristics
| CART (n = 21) |
CT (n = 20) |
|||||
|---|---|---|---|---|---|---|
| Variable | N (%) | M (SD) | N (%) | M (SD) | χ2(df) | t(df) |
| Participant characteristics | ||||||
| Male | 4 (19.1) | 3 (15.0) | 0.12 (1) | |||
| Age (years) | 31.42 (8.93) | 35.00 (10.64) | 1.13 (39) | |||
| White | 18 (85.7) | 18 (90.0) | 0.98 (3) | |||
| Family and social background | ||||||
| Education (years) | 16.05 (2.40) | 15.55 (2.44) | 0.66 (39) | |||
| Married | 10 (47.6) | 8 (40.0) | 4.89 (4) | |||
| Additional Axis I diagnosis | 8 (40.0) | 10 (58.8) | 1.30 (1) | |||
| Use of psychotropic medication | 13 (61.9) | 15 (75.0) | 0.81 (1) | |||
| Clinical characteristics | ||||||
| PCO2 | 34.34 (3.82) | 33.49 (4.75) | 0.63 (39) | |||
| RR | 15.57 (3.08) | 13.41 (3.74) | 1.98 (37) | |||
| ASI | 35.34 (9.39) | 35.75 (12.44) | 0.45 (37) | |||
| BSQ | 2.17 (0.64) | 2.25 (0.86) | –0.33 (37) | |||
| ASI/BSQ | 0.02 (1.57) | –0.02 (2.05) | 0.07 (37) | |||
| ACQ | 69.74 (15.34) | 74.42 (14.49) | –0.98 (37) | |||
| PDSS | 17.72 (3.10) | 16.95 (5.36) | 0.57 (39) | |||
Note. None of the differences between treatment groups were significant. CART = capnometry-assisted respiratory training; CT = cognitive skill training; SD = standard deviation; PCO2 = partial pressure of carbon dioxide; RR = respiration rate; ASI = Anxiety Sensitivity Index; BSQ = Body Sensations Questionnaire; ASI/BSQ = composite of z-scored Anxiety Sensitivity Index and Body Sensations Questionnaire; ACQ = Anxiety Control Questionnaire; PDSS = Panic Disorder Severity Scale.