|
| Unmatched | Mean | %reduct |
| t-test | ||
| Variable | Matched | Treated | Control | %bias | bias | t | P > t |
| Dy | Unmatched | 79.80 | 76.87 | 33.90 |
| 2.76 | 0.006 |
|
| Matched | 80.14 | 79.27 | 10.00 | 70.50 | −1.51 | 0.132 |
| Gy | Unmatched | 78.82 | 78.32 | 5.60 |
| 0.46 | 0.643 |
|
| Matched | 79.47 | 76.18 | 37.10 | −557.70 | 2.41 | 0.017 |
| zj | Unmatched | 77.47 | 70.42 | 73.20 |
| 5.94 | 0.000 |
|
| Matched | 77.76 | 75.83 | 20.00 | 72.60 | −4.58 | 0.000 |