Hazard models indicated that with each year that first drink was delayed, the estimated odds of attaining the milestones were lower than the odds for these one year younger (i.e., those with earlier onset). The hazard odds ratio (OR) for getting drunk was 0.78 (95% CI:0.77,0.80); for monthly drinking, OR=0.82 (95% CI:0.80,0.83); for weekly HED, OR=0.87 (95% CI:0.86,0.89); and for daily HED, OR=0.85 (95% CI:0.82,0.87).
