Figure 2From: MicroRNA-21 and the clinical outcomes of various carcinomas: a systematic review and meta-analysis Meta-analysis of the association between miR-21 expression and prognosis. Meta-analysis of the forest plot showing the association between miR-21 and overall cancer survival. The squares represent the size of the study and are centred on the HR. The whiskers represent the 95% CIs. A random effects (RE) model was used, and the x-axis shows the Hazard ratio.Back to article page