Decomposing differences in depressive symptoms between older rural-to-urban migrant workers and their counterparts in mainland China

Table 3 L₁ measure of imbalance before and after Coarsened Exact Matching

Variables	Before Matching		After Matching		Before Matching		After Matching
	older rural-to-urban migrant workers		older rural dwellers		older rural-to-urban migrant workers		older urban residents
	L₁	mean	L₁	mean	L₁	mean	L₁	mean
Age group	0.052	−0.052	2.3e-15	9.5e-15	0.052	−0.052	3.3e-16	−2.4e-15
Gender	0.071	−0.071	2.5e-15	−2.7e-15	0.071	−0.071	3.1e-16	−8.9e-16
Living arrangement	0.049	−0.049	6.5e-16	2.7e-15	0.049	−0.049	1.2e-16	2.2e-15
Educational attainment	0.050	0.078	5.1e-16	6.7e-16	0.050	0.078	1.2e-16	−3.1e-15
Social activity	0.175	−0.086	1.0e-15	3.6e-14	0.175	−0.086	1.8e-16	−8.9e-16
Smoke	0.164	−0.069	2.7e-15	1.8e-15	0.164	−0.069	2.5e−16	-1.3e15
Drink	0.062	0.071	3.5e-15	8.4e-15	0.062	0.071	5.8e-16	−7.1e-15
Income quintiles	0.052	−0.052	2.3e-15	9.5e-15	0.052	−0.052	3.3e-16	−2.4e-15
L₁	0.478		3.4e-15		0.456		5.9e-16

L₁ reported the L_1j measure, which is L₁ computed for the j th variable separated. The mean was labeled in parentheses reported the difference in means

ISSN: 1471-2458