Table 1

Demographic characteristics of the studied population
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)

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.

Carmona-Fernandes et al.

Carmona-Fernandes et al. BMC Medicine 2013 11:98   doi:10.1186/1741-7015-11-98

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