Fig. 1From: Smoking is associated with the concurrent presence of multiple autoantibodies in rheumatoid arthritis rather than with anti-citrullinated protein antibodies per se: a multicenter cohort studyPooled analysis investigating the association between smoking and the number of autoantibodies. Forest plots with odds ratio (OR) and 95% confidence interval. a Association of smoking with one autoantibody versus zero autoantibodies. b Association of smoking with two autoantibodies versus zero autoantibodies. c Association of smoking with three autoantibodies versus zero autoantibodies. d Association of smoking with three autoantibodies versus two autoantibodies. BARFOT Better Anti‐Rheumatic Farmaco-Therapy, EAC Early Arthritis Clinic, NOAR Norfolk Arthritis RegisterBack to article page