Table 1

Demographic and disease-related characteristics of patients

Female68.5% (563)
Age, years57 (45–67)
Diagnosis of RA73% (603)
Ethnicity
 Black British6.0% (49)
 South Asian7.7% (63)
 White British84.9% (698)
 Other1.5% (12)
Self-reported family history of RA34.9% (287)
Palindromic onset42.8% (352)
Acute onset35.9% (295)
Duration of morning stiffness, minutes60 (10–120)
DAS284.88 (3.98–5.80)
Health Assessment Questionnaire (HAQ)1.13 (0.50–1.73)
Tender joint count9 (4–18)
Swollen joint count5 (2–10)
  • Data are presented as either percentage (number) or median (IQR) as appropriate.

  • Tender joint count is out of 42 joints (10 proximal interphalyngeal (PIP), 10   metacarpophalyngeal (MCP), two wrist, two elbow, two shoulder, two hip, two knee, two ankle, 10 MTP). Swollen joint count is out of 40 joints (10 PIP, 10 MCP, two wrist, two elbow, two shoulder, two knee, two ankle, 10 MTP).

  • DAS28, Disease Activity Score 28; HAQ, Health Assessment Questionnaire; MCP, metacarpophalyngeal; PIP, proximal interphalyngeal; RA, rheumatoid arthritis.