Fig. 2
Pulmonary FDG uptake. a, b S/SUVmax and S/Intensities in controls (n = 89), in SSc patients without ILD (n = 14), in SSc patients with ILD (n = 22), in SSc patients with stable ILD (n = 13), and in SSc patients with progressing ILD (n = 9). c, d Number of stable ILD and progressing ILD per baseline S/SUVmax and S/Intensities ranges. e, f The ROC curve analysis of S/SUVmax and S/Intensities for the prediction of progressing ILD. Data are shown as the median with interquartile range. sILD, stable interstitial lung disease; pILD, progressing interstitial lung disease; SSc, systemic sclerosis. *p < 0.05; **p < 0.01; ***p < 0.001