Patients with multilevel peripheral artery disease presented significantly higher IGFBP-7 concentrations than patients with aortoiliac occlusive disease—median 1.18 ng/mL (IQR 0.48–2.23) vs. 1.42 ng/mL (0.71–2.63), p = 0.035. This evidence concerns the gene IGFBP7 and peripheral arterial disease.