Suchergebnisse

Abstract

Aims
To quantify the relationship between alcohol and violence with increasing age.


Methods
Data were from The National Longitudinal Study of Adolescent to Adult Health (ADD Health) of 20,386 people representative of the US population. Mean age at the first wave of interviews was 16.2 years, with subsequent interviews mean of 1, 6.3 and 12.9 years later. We used random-effects models and predictive marginal effects of the association between varying quantities of alcohol consumption and violence while controlling for possible confounders.


Results
Violence was reported by 19.1% of participants at wave I but just 2.1% at wave IV. The random-effects model showed that consuming 1–4 drinks on each occasion was associated with a modest increase in risk of violence in both males (odds ratio (OR) 1.36, 95% CI 1.13–1.63) and females (OR 1.33, 95% CI 1.03–1.72). For consumption of five or more drinks on each occasion, the risk remained similar for females (OR 1.40 (0.99–1.97)) but increased considerably for males (OR 2.41 (1.96–2.95)). Predictive marginal effects models confirmed that violence rates decreased with age.


Conclusions
Alcohol is most strongly linked to violence among adolescents, so programmes for primary prevention of alcohol-related violence are best targeted towards this age group, particularly males who engage in heavy episodic drinking.

Background: Prison suicide rates are high, and suicide-related behaviors (SRBs) higher, but effects of contact with such behaviors in prison have not previously been examined. Aims: To compare the mental state of young men witnessing a peer's suicide-related behavior in prison with that of men without such experience, and to test for factors associated with morbidity. Method: Forty-six male prisoners (age 16–21 years) reporting contact with another's suicide-related behavior in prison were interviewed 6 months after the incident, with validated questionnaires, as were 44 without such contact at least 6 months into their imprisonment. Results: Significantly higher levels of psychiatric morbidity and own suicide-related behaviors were found in the witness group, even after controlling for their higher levels of family mental illness and pre-exposure experience of in-prison bullying. Some personal factors were associated with higher morbidity; incident and institutional factors were not. Conclusions: Findings of heightened vulnerabilities among young men exposed to suicide-related behaviors in prison suggest a need for longitudinal study to clarify temporal relationships and inform strategies to prevent or limit development of morbidity and further harm.