Objectives: To provide an updated review of the magnitude of the relationship between alcohol use and suicidal behaviour at the individual and the population level. Methods: Systematic literature searches retrieved 14 reviews of individual level studies and 16 primary population level studies. Results: Alcohol abuse and alcohol intoxication are often present in suicidal behaviour; risk of suicide is elevated in alcohol abusers ; and increasing population drinking tends to be associated with increase in suicide rates. Estimated magnitude of the relationship differs for men and women and it varies at the population level across cultures with different drinking pattern. These variations probably reflect gender differences and cultural variation in drinking behaviour generally. Conclusion: Empirical evidence for a causal relationship is still urgently needed.

Background: Although several studies suggests that cannabis users are at increased risk of

Introduction and Aims. To identify latent developmental episodic heavy drinking (EHD) trajectory groups for Norwegian adolescents, investigate risk factors associated with group membership and to assess differences in alcohol problems between different groups in early adulthood. Design and Methods. Data were from 1266 individuals measured at four time points from age 13/14 years to age 26/27 years. Latent class growth analysis was used to identify groups with different EHD development. Multinomial logistic regression was used to investigated if gender, impulsivity, school commitment, parents' socio‐economic status, frequency of seeing parents drunk and parental knowledge could predict group membership. Differences in alcohol problem scores at age 26/27 were also assessed. Results. Four trajectory groups were identified: ‘stable high’, ‘early increasers’, ‘late increasers’ and ‘stable low’. Membership of the high‐risk trajectory groups ‘stable high’ and ‘early increasers’ was predicted by high impulsivity, low school commitment, high frequency of seeing parents drunk and low parental knowledge. The risk of alcohol problems at age 26/27 was greater for the ‘stable high’ group, the ‘early increasers’ and the ‘late increasers’ compared with the ‘stable low’ group. The ‘stable high’ and ‘early increasers’ had similar risk of alcohol problems. Discussion and Conclusions. Stable high and early increasing EHD in adolescence was associated with more alcohol problems in early adulthood. Such trajectories were predicted by high impulsivity, low school commitment, high frequency of seeing parents drunk and low parental knowledge. [Brunborg GS, Norström T, Storvoll EE. Latent developmental trajectories of episodic heavy drinking from adolescence to early adulthood: Predictors of trajectory groups and alcohol problems in early adulthood as outcome.