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Table 2 Average Standardized Mean Differences (ASMDs), Proportion of Matched Treated (PMT), and Proportion of Resampled Controls (PRCs) in the matched sets of the case study obtained with all the evaluated PSM strategies

From: Oversampling and replacement strategies in propensity score matching: a critical review focused on small sample size in clinical settings

Replacement Oversampling ASMD PMT PRC
No 1 0.089 0.526 0.000
2 0.086 0.316 0.000
3 0.185 0.193 0.000
4 0.147 0.140 0.000
5 0.183 0.105 0.000
Yes 1 0.193 0.895 0.375
2 0.110 0.737 0.645
3 0.139 0.596 0.636
4 0.142 0.579 0.771
5 0.150 0.509 0.800