Table 5.
Change in positive affect, negative affect, and life satisfaction in patients with knee or hip osteoarthritis after completing a 6-week positive (intervention) or neutral (control) program
| Positive (Intervention) Group |
Neutral (Control) Group |
Group × Time Interaction |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Outcomes | Baseline (N = 21) | 1-mo (N = 16) | 3-mo (N = 17) | 6-mo (N = 16) | Baseline (N = 21) | 1-mo (N = 18) | 3-mo (N = 18) | 6-mo (N = 17) | Chi-square | P |
| Positive affect | ||||||||||
| Mean (SD) | 18.7 (4.2) | 20.2 (4.5) | 18.1 (4.2) | 18.8 (3.8) | 17.9 (4.6) | 17.5 (4.6) | 16.1 (4.3) | 16.4 (4.9) | 1.67 | 0.64 |
| Δ from baseline | +1.5 | –0.6 | +0.1 | 0.4 | –1.8 | –1.5 | ||||
| Negative affect | ||||||||||
| Mean (SD) | 11.8 (4.2) | 9.1 (4.1) | 9.8 (4.9) | 9.7 (4.1) | 10.0 (5.1) | 10.1 (5.6) | 10.1 (5.3) | 10.0 (5.1) | 9.14 | 0.03 |
| Δ from baseline | –2.7 | –2.0 | –2.1 | +0.1 | +0.1 | 0.0 | ||||
| Life satisfaction | ||||||||||
| Mean (SD) | 13.9 (4.4) | 16.7 (4.7) | 14.8 (5.1) | 15.1 (4.8) | 16.5 (5.4) | 14.9 (5.7) | 15.2 (5.1) | 16.0 (5.5) | 9.72 | 0.02 |
| Δ from baseline | +2.8 | +0.9 | +1.2 | –1.6 | –1.3 | –0.5 | ||||