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Gene-environment interplay linking perceived parental supervision and peer drunkenness with Chinese adolescent
Yao Zheng1, Zachary Meyer1, Jennifer B Unger2
1Department of Psychology, University of Alberta, Edmonton, Alberta, Canada.
Abstract:
Following 602 Chinese twin pairs (48% male, all Han ethnicity) from primarily lower-than-average socioeconomic status families from early to mid-adolescence (Ms = 12 and 15 in 2006 and 2009), this study investigated gene-environment interplay between perceived parental supervision, peer drunkenness, and adolescent alcohol initiation. For alcohol initiation, shared environmental influences were initially negligible but became substantial. Genetic factors largely explained the links between both correlates with alcohol initiation. Parental supervision amplified genetic risks for alcohol initiation in early adolescence but suppressed it in mid-adolescence. Peer drunkenness augmented genetic and environmental influences at both times. Peer drunkenness showed stronger links and moderating potential than parental supervision. Chinese adolescents show dynamic gene-environment interplay patterns involving parent-child and peer processes in alcohol initiation.
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