Effect of Genetic-Environmental Interaction on Chinese Childhood Myopia

Table 3

Multiple regression analysis using 2623 families to assess environmental and genetic model in myopia.

Variable	β	SE		95% CI for β	P	Adjusted R^2
Max SE (D)	−0.54	0.03	−0.297	−0.179	<0.001	0.402
Min SE (D)	−0.929	0.037	−0.248	−0.103	<0.001
Father SE (D)	0.511	0.028	0.069	0.179	<0.001
Mother SE (D)	0.665	0.031	0.079	0.201	<0.001
Homework (2-3 hours)	−0.063	0.101	−0.285	0.113	0.393	Removed
Homework (>3 hours)	0.079	0.246	−0.213	0.76	0.268	Removed
Watching TV (1-2 hours)	−0.091	0.079	−0.256	0.056	0.207	Removed
Playing PC games (1-2 hours)	−0.012	0.065	−0.138	0.117	0.872	Removed
Playing PC games (2-3 hours)	0.08	0.158	−0.136	0.488	0.266	Removed
Sleep duration	−0.097	0.029	−0.101	0.014	0.138	Removed
Lunch break at school	0.076	0.051	−0.04	0.162	0.235	Removed
Outdoor activities at noon	−0.006	0.071	−0.146	0.134	0.931	Removed