Fig. 3From: Correlates of screen time among 8–19-year-old students in ChinaOdds ratios of environmental correlates on prolonged screen time in Chinese students. The independent variables in the logistic models included sex, age, grade, television, personal computer (PC), cell phone, presence of parents/others while playing (pPC) or watching TV (pTV). * p < 0.05, ‡ p < 0.001Back to article page