Table 2 Pearson’s correlation coefficient (r), intraclass correlation coefficient (ICC), and floor and ceiling effect of the four WOSI domains (physical symptoms and pain, recreation and work, lifestyle and social functioning, and emotional well-being) and total WOSI (95% confidence interval)
WOSI domains | r | ICC | Floor/ceiling effect | |||
|---|---|---|---|---|---|---|
SSV | OSIS | CS | Baseline | 1 year | ||
Physical/pain | 0.58 (0.37; 0.74) | -0.67 (-0.48; -0.80) | 0.21 (-0.07; 0.46) | 0.89 (0.83-0.93) | 0 / 0 | 0 / 2% |
Recreation/work | 0.71 (0.54; 0.82) | -0.81 (-0.69; -0.89) | 0.25 (-0.03; 0.49) | 0.87 (0.80-0.91) | 0 / 0 | 0 / 6% |
Lifestyle/social | 0.64 (0.45; 0.78) | -0.79 (-0.65; -0.87) | 0.21 (-0.07; 0.46) | 0.90 (0.85-0.93) | 0 / 2% | 0 / 6% |
Emotional | 0.68 (0.51; 0.81) | -0.79 (-0.66; -0.88) | 0.26 (-0.02; 0.50) | 0.81 (0.73-0.87) | 3% / 0 | 0 / 8% |
WOSI total | 0.69 (0.52; 0.81) | -0.81 (-0.69; -0.89) | 0.25 (-0.03; 0.49) | 0.91 (0.86-0.95) | 0 / 0 | 0 / 0 |