Efficacy
trauma
REGRESSION
We summarized the time spent and the decisions made for each severely injured trauma case (n = 4) on the simulation (eg, diagnostic testing or administration of blood products) using median values and IQRs, and we scored disposition decisions as consistent with the American College of Surgeons guidelines or not. To compare differences between the intervention and control groups, we fit a mixed-effects logistic regression model, clustered at the participant level, with the transfer decision as the dependent variable and physicians’ exposure as the primary independent variable. Given the statistical power, we did not adjust for any potential confounders (eg, practice environment). In a post hoc sensitivity analysis, we excluded physicians who had previously participated in our research.