| RA | Rheumatoid Arthritis |
| DAS28 | Disease Activity Score-28 |
| CDAI | Clinical Disease Activity Index |
| VAS | Visual Analog Scale |
| MTP | Metatarsophalangeal |
| STJ | Subtalar Joint |
| HAV | Hallux Abductus Valgus |
| Ankle | Ankle Joint |
| SD | Standard Deviation |
| OR | Odds Ratio |
| CI | Confidence Interval |
| SENS | Simple Erosion Narrowing Score |
| ARm | Rheumatoid Arthritis with metatarsal pain |
| ARo | Rheumatoid Arthritis with other foot pain |
| WHO | World Health Organization |
| EULAR | European Alliance of Associations for Rheumatology |
| OMERACT | Outcome Measures in Rheumatology |
| DMARDs | Disease-Modifying Antirheumatic Drugs |