| Model 1 (Block 1) | Model 2 (Block 1 and 2) | Model 3 (Block 1 and 3) | |||
---|---|---|---|---|---|---|
 | R2 | β | R2 | β | R2 | β |
Block 1:Perceptions | .49 | Â | .49 | Â | .59 | Â |
Consequences |  | –.55*** |  | –.55*** |  | –.50*** |
Timeline |  | –.16 |  | –.14 |  | –.08 |
Personal control |  | –.09 |  | –.08 |  | –.06 |
Treatment control | Â | .16* | Â | .16* | Â | .20** |
Identity |  | –.09 |  | .11 |  | –.06 |
Illness concern | Â | .01 | Â | .02 | Â | .06 |
Comprehensibility | Â | .07 | Â | .04 | Â | . 07 |
Emotional response |  | –.15 |  | –.14 |  | -.17 |
Block 2: Demographic characteristics | Â | Â | Â | Â | Â | Â |
Age |  |  |  | –.01 |  |  |
Gender |  |  |  | –.10 |  |  |
Block 3: Clinical characteristics | Â | Â | Â | Â | Â | Â |
MRC dyspnoea |  |  |  |  |  | –.35** |
FEV%pred |  |  |  |  |  | –.11 |
Comorbidity | Â | Â | Â | Â | Â | .05 |
F change | Â | 11.25*** | Â | 7.69 | Â | 6.47*** |