Matching Method | Sample Size | SB for Logit of PS (%) | PBR for Logit of PS (%) | Average of Absolute SB across 74 Covariates (%) | Average of PBR across 74 Covariates (%) |
---|---|---|---|---|---|
Prior to Matching | nR = 1990 nU = 4327 | 78.73 | — | 16.22 | — |
Post Matching | |||||
Nearest Neighbor | nR = nU = 1990 | 30.23 | 75.21 | 4.84 | 53.32 |
Optimal | nR = nU = 1990 | 30.23 | 75.21 | 4.91 | 55.15 |
Mahalanobis Caliper | nR = nU = 1701 | 61.04 | 51.79 | 10.16 | 25.70 |
Caliper | nR = nU = 1539 | 1.96 | 98.41 | 1.00 | 76.78 |
50 % Interval | nR = nU = 1483 | −2.89 | 97.69 | 1.43 | 76.50 |
68 % Interval | nR = nU = 1538 | −0.46 | 99.64 | 1.25 | 79.24 |
95 % Interval | nR = nU = 1713 | 9.52 | 92.55 | 1.33 | 79.12 |