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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)