Efficacy and Safety of Pericapsular Nerve Group Block for Hip Fracture Surgery under Spinal Anesthesia: A Meta-Analysis

Figure 3

Forest of standardized mean differences in pain scores measured at different time points. The green square represents the effect of individual studies, and the vertical lines show the corresponding 95% confidence intervals (CIs). The black diamond reflects the overall or summary effect. The outer edges of the diamonds represent the CIs.