TNNT2 and chronic kidney disease: For the diagnosis of AMI based on coronary angiography or echocardiography and electrocardiography (n = 359), the optimal cutoff values of the relative changes in hs-cTnT were 16% for patients with low eGFR, 16% for CKD (+), 12% for patients with normal eGFR, and 11% for CKD (−) (Table 4).