From: Distinct lymphocyte subpopulations in bone marrow from rheumatoid arthritis and osteoarthritis patients: a role for IL-15?
Patients
CD3+
CD4+
CD8+
CD19+
RA
6.1 ± 2.8
3.0 ± 1.2
3.0 ± 1.7
0.85 ± 0.3
OA
3.2 ± 1.6
1.6 ± 0.8
1.6 ± 0.9
2.0 ± 0.9
RA versus OA
P < 0.008
P < 0.004
P < 0.03
P < 0.02