| Index joints | Other joints | OR (95% CI) |
| DIP | PIP | 31.7 (13.8 to 72.5) |
| PIP | CMC | 4.8 (2.7 to 8.4) |
| CMC | Knee | 2.4 (1.5 to 4.4) |
| PIP | Knee | 2.4 (1.3 to 4.4) |
| Knee | Hip | 2.1 (1.2 to 3.4) |
| DIP | Knee | 1.8 (1.1 to 3.1) |
CMC, carpometacarpal; DIP, distal interphalangeal; PIP, proximal interphalangeal; OR, odds ratio.