Fig 1.
Flow diagram of the study selection process.
Table 1.
Main characteristics of enrolled studies.
Table 2.
Main results of enrolled studies.
Fig 2.
Forest plots of the relationship between elevated miR-21 level and OS (A) and DFS/RFS (B).
Table 3.
Subgroup analyses of pooled hazard ratios for overall survival with elevated miR-21 expression.
Table 4.
Meta-analyses of miR-21 Expression Classified by clinicopathologic parameters.
Fig 3.
Funnel plot for publication bias analysis: (A) OS; (B) DFS/RFS.
Fig 4.
Sensitivity analysis for OS (A) and DFS/RFS (B).