Fig. 2

Association between tranexamic acid and in-hospital mortality applying three different propensity score models. Risk differences and 95% confidence intervals for in-hospital mortality by the treatment group using three models of propensity score analysis are shown. Propensity score matching shows the result of the propensity score matching analysis. Propensity score adjustment shows the result of the multivariable regression model using the estimated propensity score as a covariate. Stabilised inverse probability of treatment weighting shows the result of the stabilised inverse probability of treatment weighting analysis using estimated propensity scores. CI, confidence interval; RD, risk difference