Association of smaller-diameter underdilation of transjugular intrahepatic portosystemic shunt stents with improved long-term survival: A propensity score-matched study

Figure 2 Comparison of standardized mean differences in the main baseline characteristics of transjugular intrahepatic portosystemic shunt patients before and after propensity score matching. Before propensity score matching, there were statistically significant differences between the two groups regarding liver cancer, indication for transjugular intrahepatic portosystemic shunt, hypertension, sex, and age; the standardized mean differences for all variables were > 0.2. After propensity score matching, the standardized mean differences for all variables were < 0.1, indicating effective matching. PSM: Propensity score matching.