In our study, DAT methylation at CpG sites M1, M6, and M7 in mothers was correlated with maternal Anxiety and Phobic Anxiety, whereas methylation in fathers at CpG M6 was related to paternal Depression, Anxiety, Hostility, Psychoticism and a higher score in GSI at SCL-90-R. The gene discussed is SLC6A3; the disease is Anxiety.