Frequencies of subregions exhibiting cartilage loss according to WORMS baseline cartilage score and number of associated pathologies
| Subregions exhibiting cartilage loss at 30 months follow-up | |||||
|---|---|---|---|---|---|
| Cartilage status in subregion at baseline (WORMS grade) | Subregions with no associated pathology (%) | Subregions with one associated pathology (%) | Subregions with two associated pathologies (%) | Subregions with three associated pathologies (%) | All |
| 0 and 1 n=9747 | 180/7286 (2.5) | 99/1633 (6.1) | 70/792 (8.8) | 3/36 (8.3) | 352/9747 (3.6) |
| 2 n=476 | 66/292 (22.6) | 35/121 (28.9) | 31/58 (53.5) | 1/5 (20.0) | 133/476 (27.9) |
| 2.5 n=173 | 11/103 (10.7) | 12/42 (28.6) | 9/22 (40.9) | 2/6 (33.3) | 34/173 (2.0) |
| 3 n=427 | 106/753 (14.1) | 93/472 (19.7) | 167/604 (27.7) | 61/154 (39.6) | 427/1983 (21.5) |
| 4 n=49 | 1/9 (11.1) | 3/10 (30.0) | 3/22 (13.6) | 4/8 (50.0) | 11/49 (22.4) |
| 5 and 6 n=1096 | 11/148 (7.4) | 26/185 (14.1) | 58/363 (16.0) | 67/400 (16.8) | 162/1096 (14.8) |
| All grades | 375/8591 (4.4) | 268/2463 (10.9) | 338/1861 (18.2) | 138/609 (22.7) | 1119/13524 (8.3) |
WORMS, whole organ MRI score.