Relative deprivation and episodes of drunkenness among French and Canadian adolescents.

INTRODUCTION AND AIMS: Studies link socio-economic deprivation to alcohol consumption in adolescents, but the role of relative deprivation has been understudied and may be equally important. This study investigates the association between relative deprivation and episodes of drunkenness among adolescents in France and Canada. DESIGN AND METHODS: We used data from the 2014 Health Behaviours in School-aged Children study collected from 15-year-olds in Canada (n = 4276) and France (n = 1625). Students reported the number of times they had ever been drunk. The degree of relative deprivation was quantified through the student's rank in the deprivation distribution, measured through the Family Affluence Scale, within school and the extent of the inequality. Random intercept logistic regression models were used to examine the association between relative deprivation and drunkenness. RESULTS: Canadian adolescents were more likely to have experienced drunkenness more than once in their lifetime compared with French adolescents (21.6% vs. 16.2%). Adolescents with high relative deprivation were not more likely to report episodes of drunkenness in Canada and were less likely to report episodes of drunkenness in France compared with those with low relative deprivation. DISCUSSION AND CONCLUSIONS: Our findings do not support the hypothesis that adolescents who experienced greater relative deprivation are more likely to report drunkenness. They suggest that policies and interventions on alcohol use should target adolescents across all levels of deprivation in Canada and particularly those that are relatively more affluent in France. The context of countries appears to matter to the socio-economic distribution of drinking behaviour in youth. [Sentenac M, Ehlinger V, Napoletano A, Spilka S, Gariepy G, Godeau E, Elgar FJ. Relative deprivation and episodes of drunkenness among French and Canadian adolescents.

The View From the Bottom: Relative Deprivation and Bullying Victimization in Canadian Adolescents.

We investigated the relation between relative deprivation (RD)-disparity in affluence between adolescents and their more affluent schoolmates-and involvement in bullying among 23,383 students (aged 9-19) in 413 schools that participated in the 2010 Canadian Health Behavior in School-Aged Children survey. Students reported family affluence and frequency of bullying victimization and perpetration during the previous 2 months. Using the Yitzhaki index of RD and multinomial logistic regression analysis, we found that RD positively related to three types of bullying victimization (physical, relational, and cyberbullying) and to two types of perpetration (relational and cyberbullying) after differences in absolute affluence were held constant. These findings suggest that RD uniquely contributes to risk of bullying involvement.

Social context of preterm delivery in France in 2011 and impact on short-term health outcomes: the EPIPAGE 2 cohort study.

BACKGROUND: Low socio-economic context increases the risk of preterm delivery and may affect short-term outcomes in children born preterm. We described the social context of preterm delivery in France in 2011 and compared it with the general population of deliveries over the same period. We also studied how social context influenced pregnancy and delivery characteristics in the preterm population, and how it affected mortality and short-term morbidity in liveborn preterm children (<35 weeks). METHODS: We created an individual socio-economic vulnerability index, derived from multiple correspondence analysis based on maternal social information in the French National Perinatal Survey (NPS-2010). Weighted coordinates were applied to families from the EPIPAGE 2 study, a population-based cohort of preterm infants born in 2011, to quantify the infant's exposure to socio-economic vulnerability. Multivariable logistic models were used to relate the socio-economic context to pregnancy and delivery characteristics, and to assess its impact on short-term outcomes of the infants. RESULTS: Among mothers of preterm infants, gestational age decreased as socio-economic conditions worsened. In the most deprived group, women had more irregular pregnancy care, a higher prevalence of infection during pregnancy, and a lower rate of antenatal corticosteroid administration. The most deprived group was associated with a higher risk of severe morbidity for the preterm neonates. CONCLUSION: Our results emphasise the need for a large population-based surveillance system to identify the most deprived mothers, and to propose appropriate follow-up and care to these women and their infants in order to enhance long-term health.

Cyberbullying victimization and mental health in adolescents and the moderating role of family dinners.

IMPORTANCE: This study presents evidence that cyberbullying victimization relates to internalizing, externalizing, and substance use problems in adolescents and that the frequency of family dinners attenuate these associations. OBJECTIVES: To examine the unique association between cyberbullying victimization and adolescent mental health (after controlling differences in involvement in traditional, face-to-face bullying) and to explore the potential moderating role of family contact in this association. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional, observational study used survey data on 18,834 students (aged 12-18 years) from 49 schools in a Midwestern US state. Logistic regression analysis tested associations between cyberbullying victimization and the likelihood of mental health and substance use problems. Negative binomial regression analysis tested direct and synergistic contributions of cyberbullying victimization and family dinners on the rates of mental health and substance use problems. EXPOSURES: Frequency of cyberbullying victimization during the previous 12 months; victimization by traditional (face-to-face) bullying; and perpetration of traditional bullying. MAIN OUTCOMES AND MEASURES: Five internalizing mental health problems (anxiety, depression, self-harm, suicide ideation, and suicide attempt), 2 externalizing problems (fighting and vandalism), and 4 substance use problems (frequent alcohol use, frequent binge drinking, prescription drug misuse, and over-the-counter drug misuse). RESULTS: About one-fifth (18.6%) of the sample experienced cyberbullying during the previous 12 months. The frequency of cyberbullying positively related to all 11 internalizing, externalizing, and substance use problems (odds ratios from 2.6 [95% CI, 1.7-3.8] to 4.5 [95% CI, 3.0-6.6]). However, victimization related more closely to rates of problems in adolescents that had fewer family dinners. CONCLUSIONS AND RELEVANCE: Cyberbullying relates to mental health and substance use problems in adolescents, even after their involvement in face-to-face bullying is taken into account. Although correlational, these results suggest that family dinners (ie, family contact and communication) are beneficial to adolescent mental health and may help protect adolescents from the harmful consequences of cyberbullying.

The use of a test battery assessing affective behavior in rats: order effects.

Many studies have used test batteries for the evaluation of affective behavior in rodents. This has the advantage that treatment effects can be examined on different aspects of the affective domain. However, the behavior in one test may affect the behavior in following test. The present study examined possible order effects in rats that were tested in three different tests: Open Field (OF), Zero Maze (ZM) and Forced Swim Test (FST). The data of the present study indicated that the behavior in ZM was the least affected by the order of testing. In contrast, the behavior in the FST (and to a less extend the OF) was dependent on the order of the test in the test battery. Repeated testing in the same test did not change the behavior in the ZM. However, the behavior in the OF and FST changed with repeated testing. The present study indicates that the performance of rats in a test can be dependent on the order in a test battery. Consequently, these data caution the interpretation of treatment effects in studies in which test batteries are used.