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Table 1 Demographics of patients (n = 140)

From: Circulating anti-citrullinated peptide antibodies, cytokines and genotype as biomarkers of response to disease-modifying antirheumatic drug therapy in early rheumatoid arthritis

  n or median % or IQR
Black ethnicity (%) 124.0 88.5
Females (%) 110.0 79.2
Age in years, median (IQR) 47.8 14.4
Symptom duration in months, median (IQR) 9.7 11.4
Smoking history (%) 34.0 24.2
Nodulosis (%) 27.0 19.3
Rheumatoid factor positive (%) IU/ml 114.0 81.4
ACPA [n at baseline = 126] (%) U/ml 106.0 84.1
Shared Epitope positive [n at baseline =115] (%) 106.0 92.1
CRP baseline,median (IQR) μg/ml 17.1 42.3
SDAI baseline, median (IQR) 41.4 24.1