Objectives To examine the prevalence of binge drinking in adolescence and its persistence into adulthood in an Australian cohort.
Design 15-year prospective cohort study.
Setting Victoria, Australia.
Participants 1943 adolescents were recruited from secondary schools at age 14–15 years.
Primary outcome measures Levels of past-week ‘binge’ drinking (5+ standard drinks on a day, each 10 g alcohol) and ‘heavy binge’ drinking (20+ standard drinks on a day for males, 11+ for females) were assessed during six adolescent waves, and across three adult waves up to age 29 years.
Results Half of the males (52%) and a third of the females (34%) reported past-week adolescent binge drinking. 90% of male and 70% of female adolescent-onset binge drinkers continued to binge in young adulthood; 70% of males and 48% of females who were not adolescent-onset binge drinkers reported young adult binge drinking. Past-week heavy bingeing was less common in adolescence than adulthood. Overall, 35% of the sample (95% CI 33% to 38%) reported past-week binge drinking in adolescence and young adulthood and one-third (33%; 30% to 35%) first reported binge drinking in young adulthood; only 7% of the sample (6–8%) had binge drinking in adolescence but not young adulthood. ‘Heavy binge’ drinking occurred in adolescence and young adulthood for 9% (8% to 10%); 8% (7% to 10%) reported it in adolescence but no longer in young adulthood; and 24% (22% to 26%) began ‘heavy binge’ drinking in young adulthood. Among adolescent binge drinkers (n=821), young adult binge and heavy binge drinking were predicted by being male, adolescent antisocial behaviour and adverse consequences of drinking in adolescence.
Conclusions Binge alcohol use is common and persistent among young Australians. Efforts to prevent the onset of binge drinking during adolescence may substantially reduce harmful patterns of alcohol use in young adulthood.
- Public Health
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