Table 3.

Blockwise t-tests of the mean difference of propensity score between the exposure group and the control group.

Block	Mean of control group	Mean of exposure group	P value of the t-tests
[0, 0.2)	0.19	0.19	.71
[0.2,0.4)	0.27	0.26	.23
[0.4, 0.5)	0.44	0.45	.20
[0.5,0.6)	0.57	0.57	.20
[0.6,0.625)	0.61	0.61	.11
[0.625,0.65)	0.64	0.64	.73
[0.65,0.7)	0.68	0.68	.60
[0.7,0.8)	0.74	0.74	.08
[0.8,1)	0.81	0.81	.57
N = 3983