CD79A and esophageal squamous cell carcinoma: Univariate Cox proportional hazard regression analysis revealed that N-stage (Hazard ratio = 3.169, 95% CI = 1.175 – 8.545, P = 0.023), IgG (Hazard ratio = 3.039, 95% CI = 1.148 – 8.041, P = 0.025) and IgA (Hazard ratio = 3.588, 95% CI = 1.368 – 9.409, P = 0.009) were significant prognostic predictors for OS of ESCC patients (Table 2).