Chunk #10 — 2. Methods — 2.3. Analyses

Source: A cotwin-control analysis of drug use and abuse/dependence risk associated with early-onset cannabis use.
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The statistical package Mx (Neale, Boker, Xie, & Maes, 2003) was used for quantitative genetic modeling to determine the nature and extent of familial influences on early cannabis use and lifetime initiation. STATA (StataCorp, 1999) was used for conditional logistic regression analyses.