Prognostic significance of oligodendrocyte transcription factor 2 expression in glioma patients: A systematic review and meta-analysis

Figure 1 Flow diagram of the literature search and study selection protocols.

Figure 2 Forest plot illustrating the relationship between oligodendrocyte transcription factor 2 expression and overall survival in glioma patients. Each study is accompanied by a point estimate of its hazard ratio (HR) and 95% confidence interval (CI) (extending lines). The diamonds represent the estimated pooled effect (labelled ‘total’).

Figure 3 Forest plot for the association between oligodendrocyte transcription factor 2 expression and overall survival in terms of subgroup analysis of the testing index. HR: Hazard ratio.

Figure 4 Sensitivity analysis of the relationship between oligodendrocyte transcription factor 2 and overall survival.

Figure 5 Begger’s funnel plot for the publication bias test of the oligodendrocyte transcription factor 2 expression and overall survival of gliomas.

Figure 6 Egger’s funnel plot for the publication bias test of the oligodendrocyte transcription factor 2 expression and overall survival of gliomas.