DRD4 and Anxiety: For CCQ anxiety, separate follow-up ANOVAs for the two age periods revealed a significant main effect for DRD4 (F(1,83) = 5.16, p = 0.026) and a significant interaction between DRD4 and maternal regulation quality (F(1,83) = 4.13, p = 0.045) at age 12 but not at age six.