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Table 1 Demographic characteristics of the studied population

From: Anti-ribosomal P protein IgG autoantibodies in patients with systemic lupus erythematosus: diagnostic performance and clinical profile

 

SLE

HC

Rheumatic disease control

RA

JIA

AS

PsA

Age, years

43.6 ± 14.1

43.1 ± 14.6

51.7 ± 13.9

13.6 ± 7.2

41.9 ± 10.7

49.8 ± 11.1

Females, n (%)

120 (96.0)

91 (91.9)

99 (99.0)

18 (52.9)

26 (27.1)

9 (39.1)

Caucasian, n (%)

110 (88.0)

98 (99.0)

90 (90.0)

30 (88.2)

95 (97.9)

20 (90.9)

  1. Abbreviations: AS, ankylosing spondylitis; HC, healthy control; JIA, juvenile idiopathic arthritis; PsA, psoriatic arthritis; RA, rheumatoid arthritis; SLE, systemic lupus erythematosus. Values represent mean ± standard deviation for years, and proportions for categorical variables.