Number of subjects with each maximum osteophyte or narrowing grade in either TFJ or PFJ according to presence of knee pain
| Maximum osteophyte grade | No knee pain | Knee pain |
|---|---|---|
| 0 | 125 | 90 |
| 1 | 72 | 78 |
| 2 | 11 | 43 |
| 3 | 5 | 28 |
| Maximum narrowing grade | ||
| 0 | 113 | 90 |
| 1 | 76 | 82 |
| 2 | 17 | 23 |
| 3 | 7 | 44 |