Fig. 1

Meta-analysis on the effect of intravenous immunoglobulin treatment on live birth rate in women with immunological abnormalities and recurrent pregnancy loss or recurrent implantation failure. A Forest plot showing the risk ratio (RR) for live birth. A RR > 1 means that the event (live birth) is more likely to occur in the intervention than in the control group. B Sensitivity analysis showing the effect of removing one study at a time on the pooled RR. Each individual point represents the RR of the meta-analysis if the indicated study is excluded. For example, if the study of Ramos-Medina is excluded, the RR would become 1.81 (95% CI 1.31–2.50) in place of 1.98 (95% CI 1.44–2.73)