Comparison of matching performance in reducing bias
| Madhya Pradesh | Bihar | |||||
| Ujjain-Dewas | Barwani-Alirajpur | Katni-Jabalpur | Samastipur-Darbhanga | Lakhisarai- Muzaffarpur | Sitamarhi-Jamui | |
| Standardised mean bias - before matching | 16.6 | 27.5 | 40.3 | 27 | 35.4 | 40.8 |
| Standardised mean bias - after matching | 6.5 | 8 | 9.9 | 8.3 | 6.6 | 9.7 |
| % reduction in mean bias | 61% | 71% | 75% | 69% | 81% | 76% |
| P-value of LR test - before matching | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| P-value of LR test - after matching | 0.929 | 0.929 | 0.905 | 0.788 | 0.997 | 0.490 |
| Mean difference in propensity score | 0.002 | 0.072 | 0.131 | 0.004 | 0.046 | 0.181 |
LR, log reduction.