DDX27 and neoplasm: Furthermore, we found that DDX27 expression (p = 0.017), tumor size (p = 0.0004), lymph node status (p < 0.0001), histological grade (p = 0.0004) and TNM stage (p < 0.0001) were in connection with worse OS in univariate Cox regression, and multivariate analysis showed the independent factors contained tumor size (p = 0.032), lymph node status (p = 0.013) and histological grade (p = 0.015) (Table 2).