The effect of serving as a danwei leader before retirement on self-rated post-retirement health: empirical evidence from China

Table 6 Average treatment effect on the treatment group

Matching method	Treatment group	Control group	ATT	Bootstrap standard error	T-value
Nearest neighbor matching	3.485	3.293	0.191^a	0.080	2.80
Kernel matching	3.485	3.312	0.172^b	0.051	3.40
Radius matching	3.485	3.297	0.186 ^a	0.080	2.73

^a and ^b indicate significance at 5% and 1%, respectively; the standard error after matching in line 5 is calculated by bootstrapping 1000 times

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