Table 4:

Bias and standard deviation of the estimated ATT.

	Matching: Mean (SD)
	Outcome A	Outcome B	Outcome C	Outcome D
mean ASMD	0.310 (0.787)	0.386 (1.134)	0.997 (0.604)	1.149 (0.962)
max ASMD	0.273 (0.802)	0.362 (1.161)	0.960 (0.624)	1.135 (0.975)
median ASMD	1.617 (1.822)	1.804 (2.096)	2.027 (1.577)	2.485 (2.049)
mean KS	0.686 (1.308)	0.877 (1.620)	1.279 (1.060)	1.486 (1.441)
mean t-statistic	0.302 (0.785)	0.362 (1.133)	0.982 (0.598)	1.132 (0.966)
kernel distance	0.266 (0.763)	0.341 (1.072)	0.927 (0.595)	1.075 (0.907)
prognostic score	0.096 (0.369)	0.186 (0.699)	0.834 (0.269)	0.935 (0.419)
	Inverse Probability Weighting: Mean (SD)
	Outcome A	Outcome B	Outcome C	Outcome D
mean ASMD	0.622 (0.637)	0.751 (0.858)	1.283 (0.526)	1.555 (0.786)
max ASMD	0.637 (0.699)	0.788 (0.946)	1.273 (0.555)	1.589 (0.858)
median ASMD	1.756 (1.545)	2.032 (1.791)	2.211 (1.307)	2.625 (1.666)
mean KS	0.759 (0.699)	0.930 (0.926)	1.374 (0.566)	1.711 (0.818)
mean t-statistic	0.627 (0.639)	0.760 (0.862)	1.283 (0.526)	1.562 (0.790)
kernel distance	0.613 (0.598)	0.740 (0.798)	1.273 (0.512)	1.542 (0.747)
prognostic score	0.269 (0.415)	0.373 (0.640)	1.069 (0.311)	1.205 (0.450)
	Subclassification: Mean (SD)
	Outcome A	Outcome B	Outcome C	Outcome D
mean ASMD	0.648 (0.848)	0.759 (1.146)	1.288 (0.652)	1.525 (1.022)
max ASMD	0.605 (0.830)	0.709 (1.131)	1.265 (0.638)	1.488 (1.037)
median ASMD	1.961 (1.724)	2.209 (1.975)	2.400 (1.459)	2.935 (1.958)
mean KS	1.376 (1.435)	1.589 (1.715)	1.887 (1.185)	2.265 (1.605)
mean t-statistic	0.600 (0.787)	0.705 (1.082)	1.246 (0.600)	1.466 (0.961)
kernel distance	0.643 (0.607)	0.766 (0.846)	1.270 (0.487)	1.528 (0.730)
prognostic score	0.492 (0.653)	0.575 (0.984)	1.186 (0.535)	1.413 (0.875)