| ACPA | Anti-citrullinated peptide antibody |
| ANA | Anti-nuclear antibody |
| BMI | Body mass index |
| CRP | C-reactive protein |
| EHR | Electronic health record |
| ELISA | Enzyme-linked immunoassay |
| ENA | Extractable nuclear antigen |
| ESR | Erythrocyte sedimentation rate |
| IRD | Inflammatory rheumatic disease |
| PHQ | Patient Health Questionnaire |
| PRO | Patient-reported outcome |
| PtGA | Patient assessment of global disease activity |
| RA | Rheumatoid arthritis |
| RF | Rheumatoid factor |
| SD | Standard deviation |
| SpA | Spondyloarthropathy |
| SSS | Symptom Severity Scale for fibromyalgia |
| VAS | Visual analog scale |