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Shows an association between KL grade 1, 2, 3, and VAS scores.
| KL Grade | VAS Score (Mean ± SD) | P-value | |||
| 0 WEEK | 8 WEEKS | 24 WEEKS | 52 WEEKS | P < 0.01∗ | |
| 1 (n=18) | 5.16 ± 1.15 | 3.83 ± 1.15 | 2.66 ± 1.37 | 1.88 ± 1.52 | |
| 2 (n=21) | 7.71 ± 1.48 | 5.95 ± 1.39 | 4.33 ± 1.49 | 3.19 ± 1.99 | |
| 3 (n=11) | 9.09 ± 0.94 | 7 ± 1.54 | 6 ± 1.78 | 5 ± 2.36 | |
