We explored developmental specificity of the divorce/separation effect by separating divorce/separation by when it occurred (< age 6, ages 6–9, age 10+) (see Table 3). In both unadjusted and models controlling for sex, age, and SES, the experience of parental divorce/separation increased odds of initiation for each of the three age groups: for adjusted models, under age 6 (HR=1.48; 95% CI: 1.01, 2.17), age 6–9 (HR=1.61; 95% CI: 1.02, 2.55), and age 10 or older (HR=1.58, 95% CI: 1.04, 2.38). In the fully adjusted model, however, experiencing divorce/separation was not a significant predictor of age of first drink individually for any of the three age groups.
