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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Addiction. 2012 Nov 19;108(3):584–591. doi: 10.1111/add.12014

Figure 1.

Figure 1

Figure 1

Figure 1

Structural social networks of gambling, alcohol use, and tobacco use in two illustrative participants. (A) NPG network’s gambling; (B) PG network’s gambling; (C) NPG network’s smoking; (D) PG network’s smoking; (E) NPG network’s drinking; (F) PG network’s drinking. The depictions are of the same two participants’ networks in each case. The participant is not shown in the graphs. Darker colors and larger nodes reflect more frequent gambling, drinking, or smoking behavior. In each case, the networks reveal the significantly greater occurrence of gamblers, smokers, and drinkers for the PG participant; in contrast, the NPG participant exhibits a network in which the addictive behaviors are restricted to more distinct subgroups of associates.