Table 4.
Convergent construct validity—correlations between reference standards
| Comparator | Index | Baseline |
|||
|---|---|---|---|---|---|
| N | Spearman's correlation | Pearson's correlation | |||
| s=(95% CIs) | r=(95% CIs) | ||||
| MSK total (0, 56) | OHS (0, 48) | Hip | 130 | 0.83 (0.77 to 0.88) | 0.83 (0.77 to 0.88) |
| OKS (0, 48) | Knee | 125 | 0.88 (0.83 to 0.91) | 0.89 (0.84 to 0.92) | |
| OSS (0, 48) | Shoulder | 53 | 0.86 (0.78 to 0.92) | 0.87 (0.79 to 0.93) | |
| MSK total (0, 56) | EQ-5D-5L Index (−0.59, 1) | Total | 525 | 0.81 (0.78 to 0.84) | 0.80 (0.76 to 0.83) |
| Hip | 141 | 0.76 (0.68 to 0.82) | 0.77 (0.69 to 0.83) | ||
| Knee | 123 | 0.78 (0.70 to 0.84) | 0.75 (0.67 to 0.82) | ||
| Shoulder | 58 | 0.84 (0.74 to 0.90) | 0.81 (0.70 to 0.89) | ||
| Physio | 203 | 0.82 (0.77 to 0.86) | 0.81 (0.76 to 0.85) | ||
| MSK total (0, 56) | MSK-PROM (0, 30) | Total | 203 | 0.81 (0.75 to 0.85) | 0.82 (0.77 to 0.86) |