The hazard associated with having one parent with an AUD (versus no parental AUD) was similar across all ages and was associated with all outcomes. In adjusted models, the increased risk associated with having one parent with an AUD, versus none, ranged from 20% for age at first consensual sex (hazard ratio (HR) = 1.19) to 32% for age at first use of cannabis (HR=1.32). The hazards associated with having one parent with possible AUD were similar to the hazards associated with having one parent with diagnostic AUD in regard to alcohol and cannabis initiation and sexual debut.
