Table 1. Spearman’s rho correlation coefficients between the tested scores.
Correlations between the two IKDC (International Knee Documentation Committee—subjective knee form) scores, Tegner-Lysholm knee rating scale, KOOSJR (Knee disability and Osteoarthritis Outcome Score for Joint Replacement) and EQ-5D-5L Index and VAS (Visual analog scale), presented as coefficient/p value and number of subjects.
| IKDC | ikdc2 | Lysholm | KOOSJR | EQ-5D-5L | VAS | |
|---|---|---|---|---|---|---|
| IKDC | 1.000 | .816** | .506** | −.622** | .633** | .484** |
| . | .000 | .000 | .000 | .000 | .000 | |
| 103 | 50 | 102 | 96 | 100 | 99 | |
| ikdc2 | .816** | 1.000 | .392** | −.670** | .586** | .568** |
| .000 | . | .004 | .000 | .000 | .000 | |
| 50 | 54 | 53 | 48 | 50 | 49 | |
| Lysholm | .506** | .392** | 1.000 | −.546** | .513** | .436** |
| .000 | .004 | . | .000 | .000 | .000 | |
| 102 | 53 | 105 | 95 | 99 | 98 | |
| KOOSJR | −.622** | −.670** | −.546** | 1.000 | −.562** | −.567** |
| .000 | .000 | .000 | . | .000 | .000 | |
| 96 | 48 | 95 | 96 | 96 | 92 | |
| EQ-5D-5L | .633** | .586** | .513** | −.562** | 1.000 | .591** |
| .000 | .000 | .000 | .000 | . | .000 | |
| 100 | 50 | 99 | 96 | 100 | 96 | |
| VAS | .484** | .568** | .436** | −.567** | .591** | 1.000 |
| .000 | .000 | .000 | .000 | .000 | . | |
| 99 | 49 | 98 | 92 | 96 | 99 |
Notes.
**
Correlation is significant at the 0.01 level (2-tailed).