aError bars represent standard error of the mean. Determination of low vs high level of childhood physical abuse (CPA) was based on summing the items of the Conflict Tactics Scale and dichotomizing based on a median split; GG/low CPA n = 203, GG/high CPA n = 194, AG/AA/low CPA n = 43, AG/AA/high CPA n = 47. Genotype frequencies were as follows: A/A (n = 7 [1.4%]), A/G (n = 83 [17.0%]), G/G (n =...
