Figure 1From: Osteopontin Is Associated with Increased Arterial Stiffness in Rheumatoid ArthritisBox plots show plasma OPN levels and carotid to femoral PWV (median and interquartile range) in RA, SSc, and controls. OPN: RA versus SSc: P< 0.05, RA versus controls: P< 0.05, SSc versus controls: P= n.s. PWV: RA versus SSc: P= n.s., RA versus controls: P< 0.01, SSc versus controls: P< 0.01. n.s., nonsignificant.Back to article page