112 CHAPTER 5 Table S1 | Patients baseline characteristics Demographics n=28 Median age, years (range) 61 (21-79) Female, no. (%) 22 (79) Never smoker, no (%) 12 (43) Disease status Median disease duration, years (range) 12 (1-28) IgM-RF positive, no (%)* 20 (74) ACPA positive, no (%)** 20 (80) Median DAS28 (IQR)* 4.2 (2.6-6.8) Median CRP, mg/L (IQR)* 5.2 (1.2-109) IgM-RF, IgM-rheumatoid factor; ACPA, anti-citrullinated protein antibodies; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein. * one missing data (n=27); ** three missing data (n=25)
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