FGF1 and peripheral arterial disease: In comparison to individuals without PAD, PAD patients demonstrated higher mean [SD] plasma concentrations of FGF-1 (12.51 [8.41] vs 9.76 [4.44] pg/mL, p = 0.031) and leptin (30.6 [10.3] vs 22.9 [14.2] ug/mL, p = 0.035).