Table 1

Summary of patient demographics and clinical characteristics of patients included in the study

No. (%)
Gender
 Female36 (63.2)
 Male21 (37.8)
Age (years) mean±SD50.7±7.9
Disease duration (months) mean±SD7.2±1.3
Clinical diagnosis
 Rheumatoid arthritis40 (70.2)
 Psoriatic arthritis6 (10.5)
 Undifferentiated arthritis10 (17.6)
 Monoarthritis1 (1.7)
Serology19 (33.3)
 Rheumatoid factor14 (24.6)
 Anti-CCP
Biopsied joint
Large33 (35.5)
 Knee32 (34.4)
 Elbow1 (1.1)
Medium41 (44.1)
 Wrist41 (44.1)
Small19 (20.4)
 PIP2 (2.2)
 MCP17 (18.3)
  • Fifty-seven patients were recruited to the study, and data were also available on 36 of these patients who underwent a repeat biopsy procedure at 6 months.

  • MCP, metacarpal phalangeal; PIP, proximal interphalangeal.