Table 1 Intra-rater agreement for ordinal radiographic feature scores (0–3) in individual joints
| Joints | Osteophytes | Joint space narrowing | |
|---|---|---|---|
|
Left foot (n = 20) Dorsoplantar view | 1st Metatarsophalangeal joint | Kw = 0.5; pca = 53% | Kw = 0.6; pca = 81% |
| 1st Cuneo-metatarsal joint | Kw = 0.4; pca = 48% | Kw = 0.5; pca = 57% | |
| 2nd Cuneo-metatarsal joint | Kw = 0.8; pca = 86% | Kw = 0.7; pca = 81% | |
| Navicular 1st cuneiform joint | Kw = 0.5; pca = 67% | Kw = 0.6; pca = 76% | |
| Talo-navicular joint | a | Kw = 0.2; pca = 67% | |
|
Right foot (n = 20) Dorsoplantar view | 1st Metatarsophalangeal joint | Kw = 0.6; pca = 62% | Kw = −0.1; pca = 33% |
| 1st Cuneo-metatarsal joint | Kw = 0.5; pca = 57% | Kw = 0.5; pca = 62% | |
| 2nd Cuneo-metatarsal joint | Kw = 0.3; pca = 79% | Kw = 0.5; pca = 67% | |
| Navicular 1st cuneiform joint | Kw = 0.6; pca = 86% | Kw = 0.6; pca = 71% | |
| Talo-navicular jointa | a | Kw = 0.3; pca = 71% |