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Distribution of Kellgren-Lawrence (KL) and Osteoarthritis Research Society International (OARSI) Grades in the Population.
| 0 | 1 | 2 | 3 | 4 | |
|---|---|---|---|---|---|
| KL grade | 24 | 20 | 35 | 29 | 16 |
| Joint space narrowing OARSI grade | 47 | 32 | 29 | 16 | — |
| Sclerosis OARSI grade | 62 | 26 | 27 | 9 | — |
| Osteophyte OARSI grade | 30 | 43 | 17 | 34 | — |
