Problems in conceptualizing adolescent risk behaviors: international comparisons

Patterns of health-related behaviours among adolescents: a cross-sectional study based on the National Survey of School Health Brazil 2012

OBJECTIVES

The aim of this study was to analyse the clustering of multiple health-related behaviours among adolescents and describe which socio-demographic characteristics are associated with these patterns.

DESIGN

Cross-sectional study.

SETTING

Brazilian schools assessed by the National Survey of School Health (PeNSE, 2012).

PARTICIPANTS

104 109 Brazilian ninth-grade students from public and private schools (response rate=82.7%).

METHODS

Exploratory and confirmatory factor analyses were performed to identify behaviour clustering and linear regression models were used to identify socio-demographic characteristics associated with each one of these behaviour patterns.

RESULTS

We identified a good fit model with three behaviour patterns. The first was labelled 'problem-behaviour' and included aggressive behaviour, alcohol consumption, smoking, drug use and unsafe sex; the second was labelled 'health-compromising diet and sedentary behaviours' and included unhealthy food indicators and sedentary behaviour; and the third was labelled 'health-promoting diet and physical activity' and included healthy food indicators and physical activity. No differences in behaviour patterns were found between genders. The problem-behaviour pattern was associated with male gender, older age, more developed region (socially and economically) and public schools (compared with private). The 'health-compromising diet and sedentary behaviours' pattern was associated with female gender, older age, mothers with higher education level and more developed region. The 'health-promoting diet and physical activity' pattern was associated with male gender and mothers with higher education level.

CONCLUSIONS

Three health-related behaviour patterns were found among Brazilian adolescents. Interventions to decrease those negative patterns should take into account how these behaviours cluster together and the individuals most at risk.

Patterns of sexual risk behaviors and psychiatric disorders in a community sample of young adults

This cross-sectional study documents significant associations between patterns of sexual risk behaviors and psychiatric diagnoses in a multiethnic community sample of young adults (N = 1803) in South Florida. Self-report data regarding sexual behavior and psychiatric symptoms were collected in structured interviews in a follow-up of an earlier school-based study. Cluster analysis was used to group participants with regard to levels of sexual risk behaviors during the past year. Chi-square analysis and ANOVA identified significant associations between cluster membership and (a) lifetime and (b) past year diagnoses for affective disorders, conduct disorder, antisocial personality disorder, alcohol abuse/dependence, marijuana abuse/dependence, and other drug abuse/dependence. In addition, higher levels of sexual risk behaviors were associated with higher levels of cumulative lifetime psychiatric disorders. Implications for selected prevention of sexually transmitted diseases (STDs) and the treatment of psychiatric disorders in young adulthood are discussed.

The weaker sex? Gender and post-traumatic stress disorder

We discuss the gender-specific differences for traumatic events and Post-Traumatic Stress Disorder (PTSD) as found in the epidemiological literature. Recent research literature consistently reports three interesting findings: 1) men experience traumatic events more often, 2) women and men differ in the type of traumatic experiences they experience, and 3) women more often develop PTSD after the experience of a traumatic event. In the second part of the present article we provide some explanations for these differences. The reported higher vulnerability of women for PTSD could be due to the methodology used, the higher prevalence of childhood sexual abuse and rape in women, the different coping styles of women and men, or the more limited socio-economic resources of women.

Trends in injury mortality among young people in the European Union: a report from the EURORISC working group

PURPOSE

To examine the trends in injury mortality among young people aged 15-24 years residing in the 15 current member states of the European Union between 1984 and 1993.

METHODS

As part of a European Commission-funded project entitled European Review of Injury Surveillance and Control (EURORISC), mortality data for all externally caused physical injuries (International Classification of Disease Codes E800-999) were obtained from the World Health Organization. Data were analyzed to generate age-specific injury mortality rates and proportional differences in rates over the study period. Linear regression was used to represent the linear component of the mortality profile.

RESULTS

Almost a quarter of a million young people died as a result of sustaining an externally caused physical injury (either unintentional or intentional) in the study countries between 1984 and 1993. Injury accounted for two-thirds of all deaths in this age group. Over three-quarters (76%) of deaths were due to unintentional injury, a further 17% to self-inflicted injuries, and the remaining 7% to homicide and other violent causes. Motor vehicle traffic fatalities accounted for 84% of unintentional injury deaths. Although a decline in injury mortality was observed throughout Europe, rates of mortality owing to both unintentional injuries and suicide varied widely among study countries at both the beginning and end of the study period.

CONCLUSIONS

Whereas injury mortality rates in young people in most European countries are lower than in other parts of the world (including the United States), injuries represent a major public health problem in the European Union. The death toll from motor vehicle traffic crashes is a particular cause for concern.