Relationships among the level of response to alcohol and the number of alcoholic relatives in predicting alcohol-related outcomes.

Background: The low level of response (LR) to alcohol is related to a family history (FH) of alcohol use disorders (AUDs), and each predicts alcohol-related outcomes. Few studies have evaluated the interrelationships between the number of alcoholic relatives, LR, and a range of alcohol-related outcomes. This study tests the hypotheses that there will be an inverse relationship between LR and FH and that LR will be a better predictor of the maximum quantity of alcohol consumed.