From: Correlation of antinuclear antibody and anti-double-stranded DNA antibody with clinical response to infliximab in patients with rheumatoid arthritis: a retrospective clinical study
Before IFX
After IFX
P value a
ANA
≥ 1:40
83/106
77/94
NS
78%
82%
≥ 1:160
27/106
38/94
0.03
25%
40%
anti-DNA
≥ 6 U/ml
3/93
21/80
< 0.001
3%
26%