Figure 1.

Circ‐VRK1 relative expression in breast cancer patients. Circ‐VRK1 relative expression was decreased in tumour tissue compared with adjacent tissue (A), and it had good value in distinguishing breast tumour tissue from adjacent tissue (B). The Wilcoxon rank sum test was used to compare circ‐VRK1 relative expression between tumour tissue and adjacent tissue, and ROC curve was performed to evaluate the ability of circ‐VRK1 relative expression to discriminate breast tumour tissue from adjacent tissue. P < .05 was considered significant. Circ‐VRK1, circular RNA VRK serine/threonine kinase 1; ROC, receiver operating characteristic.