CRP and scleroderma: The mDAI score is a slightly modified version of the European Scleroderma Trials and Research group (EUSTAR) DAI score that has previously been shown to retrospectively identify patients with active disease.49 Both the EUSTAR DAI and mDAI assess disease activity based on tendon friction rubs, DUs, skin thickness (mRSS ⩾ 18), diffusing capacity of the lung for carbon monoxide (< 70% predicted) and elevated CRP levels.