|
| Unmatched | Mean | %reduct |
| t-test | ||
| Variable | Matched | Treated | Control | %bias | bias | t | P > t |
| Dy | Unmatched | 72.29 | 70.73 | 17.60 |
| 1.44 | 0.15 |
|
| Matched | 72.40 | 72.48 | −0.80 | 95.30 | −1.26 | 0.21 |
| Gy | Unmatched | 79.96 | 75.16 | 61.20 |
| 4.94 | 0.00 |
|
| Matched | 79.89 | 79.68 | 2.70 | 95.60 | −4.45 | 0.00 |
| zj | Unmatched | 81.27 | 80.95 | 3.90 |
| 0.32 | 0.75 |
|
| Matched | 81.41 | 81.28 | 1.60 | 60.20 | −1.01 | 0.32 |