Data on the active joint count, presence of early morning stiffness, presence of uveitis as defined by the standardisation of uveitis nomenclature working group, physician’s global assessment (PGA) of overall disease activity on a visual analogue scale 0 – 100 mm (0 = no activity; 100mm = maximum activity), erythrocyte sedimentation rate (ESR, mm/hour) and C-reactive protein (CRP, mg/litre) were also captured. The gene discussed is CRP; the disease is uveitis.