Research Article
Elevated Serum IgG4 Defines Specific Clinical Phenotype of Rheumatoid Arthritis
Table 1
Baseline demographic characteristics of all RA patients and untreated RA patients.
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Data were described with mean ± standard deviation (range) or number (percentage) unless stated otherwise. 28TJC: 28 tender joint counts; 28SJC: 28 swollen joint counts; HAQ: Health Assessment Questionnaire; PtGA: patient global assessment of disease activity; PrGA: provider global assessment of disease activity; VAS: visual analog scales; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; RF: rheumatoid factor; anti-CCP Ab: anticyclic citrullinated peptide antibody; DAS28: Disease Activity Score with 28-joint counts. Two (1.5%) patients had received treatment of infliximab, 14 (10.3%) patients had received treatment of Recombinant Human Tumor Necrosis Factor-α Receptor I: IgG Fc Fusion Protein for Injection. |