All subjects also filled out the SRE, including scores regarding the approximately first five times of drinking. The SRE First 5 score was produced by summing the number of standard (10-12 gm ethanol) drinks required across the up to four effects, and dividing that figure by the number of effects (or boxes) endorsed. The second SRE value used here is the number of effects reported, ranging from one to four, with subjects requested to only list those effects actually experienced early in their drinking careers.
