From: Serum cathepsin K levels of patients with longstanding rheumatoid arthritis: correlation with radiological destruction
Rheumatoid factor (U/l)
Erythrocyte sedimentation rate (mm/hour)
C-reactive protein (mg/l)
Leucocytes (g/l)
Cathepsin K (pmol/l)
Mean
298.8
30.3
25.0
7.2
304.7
Standard deviation
1142.3
20.9
23.4
2.2
681.0
Median
27.0
30.0
20.0
7.0
54.8