Fig. 4

Forest plot of shockable rhythm. This forest plot presents the proportion of patients in each study who experienced a shockable rhythm during their cardiac arrest event. The x-axis represents the percentage of patients with a shockable rhythm, with the squares indicating study-specific estimates and the CI bars representing the uncertainty around each estimate. A trend of variation in the proportion of patients with shockable rhythm is observed across studies, suggesting its potential as a predictive factor for neurological outcomes