AUD before being classified as unaffected, as guided by epidemiological data regarding age of onset for severe AUD (Grant et al., 2015). Additionally, we excluded those <30 years of age at their assessment (or most recent assessment, for those with multiple assessments) who were unmarried (never married) from the marriage analytic sample. Epidemiological data regarding the age at the majority of first marriages (Goodwin et al., 2009) guided our decision to use age 30 as the cut-off.
