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Table 1 Baseline characteristics compared to healthy controls

From: Spinning straw into gold: description of a disruptive rheumatology research platform inspired by the COVID-19 pandemic

Patient characteristics Patients (n = 3128) Controls (n = 1097)
Mean age—year 57 ± 14 55 ± 13
Female sex—no. (%) 1994 (64) 754 (69)
Mean BMI 26 ± 5 25 ± 4
Educational level*—no. (%)
 High 1155 (46) 530 (58)
 Middle 783 (31) 244 (27)
 Low 566 (18) 138 (15)
Autoimmune disease type—no. (%)
Rheumatoid arthritis 1544 (49) N.A.
Psoriatic arthritis 444 (14) N.A.
Ankylosing spondylitis 423 (14) N.A.
Axial or peripheral spondyloarthritis 38 (1) N.A.
Juvenile idiopathic arthritis 47 (2) N.A.
Systemic lupus erythematodes 159 (5) N.A.
Vasculitis 44 (1) N.A.
Polymyalgia rheumatica 99 (3) N.A.
Sjogren’s disease 141 (5) N.A.
  1. Values are displayed as mean ± standard deviation (SD) or frequencies with corresponding valid percentages (%). BMI, body mass index. *Classification is based on the international standard classification of education (ISCED)