Results: High-risk children/adolescents showed a significantly
earlier age of onset of drinking and an earlier age
of onset for substance abuse problems. Familial density of
alcoholism predicted an earlier onset of drinking, as did
having deficits in reading achievement, reduced P300
(visual and auditory), and greater postural sway for age.
Higher scores on the Extraversion scale of the Junior
version of the Eysenck Personality Inventory also predicted
an earlier onset of drinking.