Statistical Analysis
Sample-sized weighted pooled baseline patient and procedural characteristics were calculated for each hypothermia regimen group. Early event risks were pooled using inverse variance weighting and pooled in a random-effects model using the Der Simonian and Laird method to estimate the between-study variance 13. Random-effect meta-analysis was performed using ‘metafor’ and ‘meta’ packages in R (version 4.0.5., R Project for Statistical Computing).