There were 1122 individuals with only one parent diagnosed with AUD, while 102 individuals had two parents (a cross-tabulation of maternal and paternal AUD showed statistically significant evidence of assortative mating). A model including parental OPD, gender and social status showed that the risk associated with having AUD in one parent was 2.18 (95% CI 1.72 – 2.76), while the risk associated with having two parents with AUD was 3.06 (95% CI 1.79-5.22).
