ANGPT2 and chronic kidney disease: However, as shown in Figure 1, in patients with CKD, there was no significant difference between serum Ang-2 levels of post-PCI and those of pre-PCI [median, 2851 (IQR, 1720–4286) vs median, 2492 (IQR, 1434–4994) pg/mL; P = .925].