Genetic and family and community environmental effects on drug abuse in adolescence: a Swedish national twin and sibling study.

ABSTRACT:

Objective

Using Swedish nationwide registry data, the authors investigated genetic and environmental risk factors in the etiology of drug abuse by twin sibling modeling. The authors followed up with epidemiological analyses to identify shared environmental influences on drug abuse.

Method

Drug abuse was defined using public medical, legal, or pharmacy records. Twin and sibling pairs were obtained from the national twin and genealogical registers. Information about sibling pair residence within the same household, small residential area, or municipality was obtained from Statistics Sweden. The authors predicted concordance for drug abuse by years of co-residence until the older sibling turned 21 and risk for future drug abuse in adolescents living with parental figures as a f

SUBMITTER: Kendler KS 

PROVIDER: S-EPMC3927993 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature