.81, p <.0001), However, an earlier legal purchase age had no significant effect on the likelihood of onset of drinking at 16 or 17 (OR 1.03, 95% ci .91, 1.16, p=.68), age 19 or 20 (OR .88, 95% ci .75 to 1.05, p = .16), or after age 21, (OR .94, 95% ci .79 to 1.11, p = .46), nor on the likelihood of lifetime abstention (OR .96, 95% c.i. .84, 1.08, p = .48). Supplementary figure 1 illustrates this pattern in the raw data, and supplementary table 3 gives further details of the multinomial logit results.
