Hazard models revealed that the estimated odds of getting drunk after having a first drink for girls were 1.16 (95% CI:1.03,1.30) the odds for boys, and the odds of monthly drinking after getting drunk for girls were 1.42 (95% CI:1.24,1.64) the odds for boys, with girls reaching that next milestone 2–3 years sooner than boys. There were no sex differences in the transition from monthly to weekly HED or from weekly HED to daily HED.
