Chunk #17 — Materials and Methods — Marker-marker interaction

Source

Interaction between two independent CNR1 variants increases risk for cocaine dependence in European Americans: a replication study in family-based sample and population-based sample.

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Text

Marker-marker interaction analyses in case-control sample were performed by mixed model backward logistic regression (Zuo et al 2007). The phenotypes served as the dependent variable and sex, age and genotypes were covariates.