IGFBP2 and atrial fibrillation: Despite this observation, patients with CE, IS, and AF on anticoagulants presented similar levels of IGFBP-2 when compared with patients with AF not receiving anticoagulants [median [IQR]: 572.6 [277.2–1080.5] vs. 459.0 [319.4–761.7], p = 0.87].