Efficacy and safety of B-ultrasound-guided radiofrequency ablation in the treatment of primary liver cancer: Systematic review and meta-analysis

Figure 1 Literatures screening analysis flow chart.

Figure 2 Meta-analysis of overall survival at 1 year, 3 years and 5 years. A: Overall survival at 1 year; B: Overall survival at 3 years; C: Overall survival at 5 years. RFA: Radiofrequency ablation; TS: Traditional surgery; OR: Odds ratio.

Figure 3 Meta-analysis of 1-year, 3-year and 5-year tumor-free survival rates. A: The 1-year tumor-free survival rates; B: The 3-year tumor-free survival rates; C: The 5-year tumor-free survival rates. RFA: Radiofrequency ablation; TS: Traditional surgery; OR: Odds ratio.

Figure 4 Meta-analysis of complications. RFA: Radiofrequency ablation; TS: Traditional surgery; OR: Odds ratio.

Figure 5 Published offset funnel plot analysis. OR: Odds ratio.