Breakdown of sample by specific KL, osteophyte, and JSN grade. Values are n/N (%) unless otherwise specified.
| Radiographic Measure* | Grade | Left Ankle | Right Ankle |
|---|---|---|---|
| KL | 0 | 349/861 (40.5) | 326/863 (37.8) |
| 1 | 479/861 (55.6) | 508/863 (58.9) | |
| 2 | 28/861 (3.3) | 27/863 (3.1) | |
| 3 | 3/861 (0.4) | 2/863 (0.2) | |
| 4 | 2/861 (0.2) | 0/863 (0.0) | |
| Osteophytes | 0 | 348/864 (40.3) | 323/863 (37.4) |
| ≥ 1 | 516/864 (59.7) | 540/863 (62.6) | |
| JSN | 0 | 828/864 (95.8) | 825/863 (95.6) |
| ≥ 1 | 36/864 (4.2) | 38/863 (4.4) |
↵* 864 participants with ankle radiographs, 1 missing right KL read, and 3 missing left KL read. KL: Kellgren-Lawrence arthritis grading scale; JSN: joint space narrowing.