Independent variables | Physical health two-year follow-up | Mental health two-year follow-up | ||||
---|---|---|---|---|---|---|
r | β | p | r | β | p | |
Step 1. Socio-demographic variables and change in personal variables | ||||||
Work status (reference = working) | −0.32* | −0.19 | 0.14 | −0.29* | −0.16 | 0.18 |
Self-esteem change (RSES-4, high scores = decreased self-esteem) | −0.23 | −0.15 | 0.36 | −0.27* | −0.32 | 0.03 |
Self-efficacy change (GSE, high scores = increased self-efficacy) | 0.11 | −0.05 | 0.74 | 0.39** | 0.34 | 0.02 |
Explained variance (R 2 ) | 18.9% | 0.01 | 21.0% | <0.01 | ||
Step 2. Subsequent treatment | ||||||
Surgery (reference = no surgery) | 0.41** | 0.38 | <0.01 | 0.01 | −0.20 | 0.10 |
Change in explained variance | 5.5% | 0.07 | 2.4% | 0.22 | ||
Explained variance (R2) | 24.4% | 23.4% | ||||
Step 3. Baseline quality of life (high scores = high quality) | ||||||
Baseline physical health | 0.39** | 0.42 | 0.001 | −0.11 | - | - |
Baseline mental health | −0.13 | - | - | 0.45** | 0.58 | 0.001 |
Change in explained variance | 16.4% | 0.001 | 28.4% | <0.001 | ||
Explained variance (R2 | 40.8% | 51.8% |