However, Chen et al., in their study, which included 5022 patients with AMI, among whom 797 patients (15.9%) had CKD, have shown that CPK-MB is an independent predictor of in-hospital mortality irrespective of renal function and reported that the ratio of hs-cTnT to CPK-MB may be helpful in the risk stratification of patients with AMI among patients with CKD [63]. The gene discussed is TNNT2; the disease is chronic kidney disease.