Table 2 Concurrent and Predictive Validity
Concurrent Validity (Spearman’s Coefficients) | ||||
| Â | EQ-5D-5L | EQ-VAS | ||
Preoperative | 0.72 (Good) | 0.31 (Fair) | ||
6 Weeks | 0.65 (Good) | 0.46 (Fair) | ||
6 Months | 0.69 (Good) | 0.49 (Fair) | ||
Predictive Validity | ||||
| Â | 6 Weeks | 6 Months | ||
| Â | Average Marginal Effect (Standard Error) | Model (Link) | Average Marginal Effect (Standard Error) | Model (Link) |
OKS | 0.33 (0.05) | Gamma (Negative Inverse) | 0.37 (0.06) | Gamma (Negative Inverse) |
EQ-5D-5L index | 0.25 (0.03) | Gaussian (Identity) | 0.23 (0.04) | Gaussian (Identity) |
EQ-VAS | 0.34 (0.04) | Gamma (Negative Inverse) | 0.31 (0.04) | Gamma (Negative Inverse) |