The impact of parental migration on left-behind children’s vision health in rural China

BMC Public Health

Table 5 Mechanism of the impact of parental migration on LBC’s vision health

	Myopia			Owned Eyeglasses
	Time on outdoor	Time on internet	After-school classes	Watching TV with parents	Parent-child interaction	Parents are the first kit
	(1)	(2)	(3)	(4)	(6)	(5)
Any Parent Migrated	0.288*	0.166	−0.280***	−0.541***	−0.325***	− 0.182***
Any Parent Migrated	(0.165)	(0.214)	(0.067)	(0.076)	(0.054)	(0.048)
F statistic of the first stage	269.14	273.17	271.75	130.59	273.17	272.83
N	10,288	10,347	10,042	10,172	10,361	10,300

Outdoor time and Internet time measure the time (in hours) students spend on outdoor sports activities and the internet or playing games on weekdays, respectively. The last four mechanism variables are dummy variables. After-school classes was scored 1 if a child attended after-school classes; Watching TV with parents was scored 1 if a child watched TV with parents more than once a week; Parents are the first kit was scored 1 if a child asked help from their parent first when in trouble. Parent-child interaction was scored 1 if parents often actively discussed with children about their worries. These mechanism variables have some missing values. The dependent variables are the myopia indicator in Columns 1–3 and the eyeglasses ownership indicator in Columns 4–5. Standard errors, in parentheses, clustered at the school level
*** p < 0.01, * p < 0.1

ISSN: 1471-2458