Fig. 7From: How to perform prespecified subgroup analyses when using propensity score methods in the case of imbalanced subgroupsREFCOR data: Connect-S-plot with the “within subsets” approach. Connect-S-plot representing standardized mean differences (SMDs) between treatment groups in the “within subsets” approach in the original dataset (first two lines) and according to the PS-based methodBack to article page