Table 2.
Mean Scores and Effect Sizes for Outcome Variables Among Veterans With Congestive Heart Failure (CHF) and/or Chronic Obstructive Pulmonary Disease (COPD) Treated With Cognitive-Behavioral Therapya
| Variable | Baseline,Mean (SD) | Wk 8, Mean (SD) | Wk 20, Mean (SD) | Baseline to Wk 8 Effect Size, Cohen d | Baseline to Wk 20 Effect Size, Cohen d |
| Full sampleb | |||||
| BDI-II | 17.35 (5.31) | 10.24 (8.86) | 10.47 (7.77) | 0.97 | 1.03 |
| STAI-trait | 41.35 (10.76) | 34.77 (12.46) | 36.77 (13.37) | 0.57 | 0.38 |
| Patients with CHF, with or without comorbid COPDc | |||||
| KCCQ overall summary score | 38.31 (9.76) | 55.44 (17.85) | 49.35 (12.53) | 1.19 | 0.98 |
| Patients with COPD, with or without comorbid CHFd | |||||
| CRQ dyspnea | 45.64 (16.69) | 47.13 (21.02) | 44.04 (20.83) | 0.08 | −0.07 |
| CRQ emotion | 58.06 (15.26) | 72.16 (20.61) | 65.93 (18.01) | 0.78 | 0.47 |
| CRQ fatigue | 37.18 (15.91) | 50.96 (20.49) | 43.59 (15.18) | 0.75 | 0.41 |
| CRQ mastery | 56.73 (17.56) | 69.23 (20.80) | 68.27 (23.48) | 0.65 | 0.56 |
a
Effect sizes of 0.2 are considered small, 0.5 medium, and 0.8 large.
b
n = 17.
c
n = 10.
d
n = 13.
Abbreviations: BDI-II = Beck Depression Inventory-II, CRQ = Chronic Respiratory Questionnaire, KCCQ = Kansas City Cardiomyopathy Questionnaire, STAI = State Trait Anxiety Inventory.