Comparison of the clinical performance of i-gel and Ambu laryngeal masks in anaesthetised paediatric patients: A meta-analysis

Figure 4 Forest plot of subgroup analysis of oropharyngeal leak pressure according to the mean age of the study population: Ambu vs i-gel. The combined oropharyngeal leak pressure from studies with participants whose mean age was < 3 years was significantly higher for i-gel (mean difference -3.53 cmH₂O, 95% confidence interval: -4.58 to -2.49, P < 0.00001, I² = 0%) while pooled analysis from the other four studies showed no significance between the two devices. CI: Confidence interval.