Table 2.

Positivity of ANAs and anti-DNA Abs before and after IFX

		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%

ANA, antinuclear antibodies; anti-DNAs, anti-ds-DNA antibodies; IFX, infliximab; NS, not significant. ^aAnalyzed with the Fisher Exact test.