N

Radius matching

Nearest neighbor

Kernel matching

Before matching

After matching

Before matching

After matching

Before matching

After matching

Pseudo R²

0.304

0.103

0.304

0.138

0.304

0.059

LRχ²

53.08

10.52

53.08

12.99

53.08

12.86

p > Chi²

0.000

0.786

0.000

0.603

0.000

0.613

Mean standardized bias

32.5

12.9

32.5

18.8

32.5

14.4