ATM and esophageal squamous cell carcinoma: And the sensitivity and specificity of ATM for predicting the 2-year mortality of ESCC patients were 66.67% and 79.55%, respectively, when PB ATM < 1.87 (AUC = 0.7292, 95%CI = 0.5886 − 0.8698, P < 0.001, Figure 4(b)).