Marriage and divorce measures came from the Semi-Structured Assessment for the Genetics of Alcoholism interview (SSAGA; for those individuals 18 years of age or older) or adolescent version of the SSAGA (for those individuals between 12–17 years of age; Bucholz et al., 1994; Hesselbrock et al., 1999). Marriage and divorce were limited to legal marriages. We excluded cohabiting marriage-like relationships as there was no information collected regarding the timing of those relationships to calculate age at initiation or dissolution. We examined first marriage and divorce for those with multiple marriages.
