“…Since alcohol-related aggression occurs more frequently among boys than among girls, we might expect that the prevalence of alcohol-related aggression would have been slightly higher if more boys had answered the questionnaire. However, in a recent study of Norwegian adolescents (16-19-yearolds) in 1992 and 2002 with response rates of 97% and 92%, aggressive behaviour did not increase in the period, although (like in our study) there was a substantial increase in intoxication incidents (Pape et al 2008).…”