AIP and coronary artery disorder: In patients with CAD undergoing CAG, higher AIP levels were associated with an increased risk of coronary total occlusion [46] (OR: 5.23, 95% CI 4.36–6.26, P < 0.00001) and poor coronary collateral circulation [47] (OR: 4.47, 95% CI 2.77–7.22, P < 0.00001).