Table 1 provides an overview of the distributions of the key measures in the FinnTwin12 sample. On average, participants endorsed 1.03 ADsx criteria, and reported being intoxicated 1.52 days per month (SD= 1.79). With respect to relationship status, of the 1,148 nonmissing responses, 58% (n=664) of the twins reported being involved in a relationship, of which 567 (84.8%) had been involved in that relationship for one year or more.