CDH13 and breast cancer: Upon analyzing the prognosis data for CDH13 promoter methylation in breast cancer patients, we found that the HR was 0.77 (95%CI: 0.27~2.21, z = -0.49, p = 0.622) and 0.38 (95%CI: 0.09~1.69, z = -1.27, p = 0.20) for overall survival (OS) and disease-free survival (DFS), respectively, as assessed by the random effect model with any heterogeneity.