Fig. 4From: DNA methylation mediates genotype and smoking interaction in the development of anti-citrullinated peptide antibody-positive rheumatoid arthritisOdds ratios (OR) of developing anti-citrullinated peptide antibody-positive rheumatoid arthritis for different combinations of smoking and rs6933349 alleles in the Epidemiological Investigation of Rheumatoid Arthritis (EIRA) cohort (a) or the Malaysian Epidemiological Investigation of Rheumatoid Arthritis (MyEIRA) cohort (b)Back to article page