Table 3

Decrease of RF titers in adalimumab treated patients: correlation with the clinical response to treatment

ACR response, week 24
Week 0
Week 24
P
ACR response, week 48
Week 0
Week 48
P

<20% (n = 6)
130.5 ± 97.9
116.5 ± 88.6
n.s.
<20% (n = 3)
89 ± 73
60.3 ± 49.2
n.d.
ACR 20 (n = 22)
155.3 ± 147.5
109 ± 123
<0.0001
ACR 20 (n = 23)
164.5 ± 141.3
105.7 ± 112.6
<0.0001
ACR 50 (n = 21)
94.1 ± 60.9
57.3 ± 36.2
<0.0001
ACR 50 (n = 16)
96.4 ± 73.2
51.6 ± 41
0.0001
ACR 70 (n = 8)
94.8 ± 164.2
40.4 ± 54
n.s.
ACR 70 (n = 15)
89.5 ± 123.4
37.5 ± 40.7
0.018

Results are means ± SD. ACR, American College of Rheumatology; n.d., not done; n.s., not significant; RF, rheumatoid factor.

Atzeni et al. Arthritis Research & Therapy 2006 8:R3   doi:10.1186/ar1851