Description of cases characteristics
| Anthropometrics | N=16 |
| Mean age, years, mean (SD) | 54 (11) |
| Female, % | 94 |
| Disease-related factors | |
| Diagnosis | |
| Rheumatoid Arthritis, % | 62 |
| Psoriatic Arthritis, % | 38 |
| DAS28 before weight loss, median (IQR) | 3.42 (2.94–4.30) |
| DAS28 after weight loss, median (IQR) | 2.48 (2.14–3.02) |
| Weight loss | |
| Method of weight loss | |
| Non-surgical, % | 75 |
| Gastric bypass surgery, % | 25 |
| BMI before weight loss, kg/m2, median (IQR) | 36 (35–42) |
| BMI after weight loss, kg/m2, median (IQR) | 28 (27–32) |
| Weight loss in kg, median (IQR) | 23 (13–29) |
| Rheumatic medication use | |
| csDMARD monotherapy, % | 50 |
| csDMARD combination therapy, % | 13 |
| csDMARD and biological combination therapy, % | 25 |
| Biological monotherapy, % | 6 |
| No rheumatic medication, % | 6 |
BMI, body mass index; csDMARDs, conventional synthetic disease-modifying antirheumatic drugs; DAS28, Disease Activity Score 28 joints.