Figure 1From: The effect of smoking and alcohol consumption on markers of systemic inflammation, immunoglobulin levels and immune response following pneumococcal vaccination in patients with arthritisResponders(%) to 23F, 6B and both pneumococcal serotypes in methotrexate treated RA patients according to smoking status. Responders i.e. patients with positive immune response defined as post-vaccination antibody levels ≥2 times pre-vaccination antibody levels. Ever smoked i.e. previous/current smokersBack to article page