In the gene-based test, no genes reached significance (α = 3.6*10−7, see Table 3). The most notable result from the gene-based test was the top ranking of the axonal guidance gene SLIT2 for reward dependence (p = 2.8*10−5), a gene that has previously been associated with anger in suicide attempters (Sokolowski, Wasserman, & Wasserman, 2010).
