Table 3.
Pearson correlation coefficients among the study variables (N = 360)
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
|---|---|---|---|---|---|---|---|---|---|
| Pain catastrophizing (1) | 1 | -0.416** | 0.516** | 0.375** | 0.407** | 0.662** | 0.596** | 0.028 | -0.038 |
| Physical function (2) | 1 | -0.629** | -.0360** | -0.442** | -0.359** | -0.401** | -0.009 | -0.014 | |
| OKS (3) | 1 | 0.532** | 0.609** | 0.575** | 0.552** | 0.001 | 0.033 | ||
| Pain intensity at rest (4) | 1 | 0.618** | 0.408** | 0.400** | -0.013 | -0.054 | |||
| Pain intensity during activity (5) | 1 | 0.384** | 0.399** | -0.060 | -0.041 | ||||
| Anxiety (6) | 1 | 0.833** | 0.015 | 0.026 | |||||
| Depression (7) | 1 | 0.048 | 0.129* | ||||||
| Otimism (8) | 1 | 0.223** | |||||||
| Pessimism (9) | * | 1 |
OKS Oxford Knee Score
** P < 0.01, * P < 0.05 (two-tailed)