Second, for those on whom genetic data were collected, a series of ten univariate conditional growth mixture models were fit independently to determine the main effects of the number of CHRM2 risk alleles (via separate models testing each of 9 distinct SNPs) and peer group antisocial behavior on probabilities of membership in the emergent trajectory classes. Thus, independent associations with peer group antisocial behavior and each of the nine SNPs were tested in separate models.
