TY - JOUR PY - 2018// TI - The natural history of risky drinking and associated harms from adolescence to young adulthood: findings from the Australian Temperament Project JO - Psychological medicine A1 - Betts, K. S. A1 - Alati, R. A1 - Baker, P. A1 - Letcher, P. A1 - Hutchinson, D. A1 - Youssef, G. A1 - Olsson, C. A. SP - 23 EP - 32 VL - 48 IS - 1 N2 - BACKGROUND: We aimed to describe the natural history of heavy episodic drinking (HED) and associated harms from adolescence to young adulthood in a large Australian population cohort study.

METHOD: The Australian Temperament Project consists of mothers and babies (4-8 months) recruited from Infant Welfare Centres and followed every 2 to 4 years until age 28 years. Analyses were based on data from 1156 young people (497 male; 659 female) surveyed repeatedly at ages 16, 18, 20, 24 and 28 years. We used dual processes latent class growth analysis to estimate trajectories of HED and associated harms, employing a piecewise approach to model the hypothesized rise and subsequent fall across adolescence and the late twenties, respectively.

RESULTS: We identified four sex-specific trajectories and observed little evidence of maturing-out across the twenties. In males, a normative pattern of increasing HED across the twenties with little related harm was observed (40% of the male sample). Early and late starter groups that peaked in harms at age 20 years with only minor attenuation in binging thereafter were also observed (6.1% and 35%, respectively). In females, a normative pattern of increasing, but moderate, HED with little related harm was observed (44% of the female sample). Early and late starter groups were also identified (18% and 17%, respectively); however, unlike males, the female late starter group showed a pattern of increasing HED and related harms.

CONCLUSIONS: Continued patterns of risky alcohol use and related harms are apparent for both males and females across the twenties.

Language: en

LA - en SN - 0033-2917 UR - http://dx.doi.org/10.1017/S0033291717000654 ID - ref1 ER -