Social norms in the development of adolescent substance use: a longitudinal analysis of the International Youth Development Study.

Identifying specific aspects of peer social norms that influence adolescent substance use may assist international prevention efforts. This study examines two aggregated measures of social norms in the school setting and their predictive association with substance (alcohol, tobacco and marijuana) use 2 years later in a large cross-national population-based cohort of adolescents. The primary hypothesis is that in Grade 7 both "injunctive" school norms (where students associate substance use with "coolness") and "descriptive" norms (where student substance use is common) will predict Grade 9 substance use. Data come from the International Youth Development Study, including 2,248 students (51.2% female) in the US and Australia attending 121 schools in Grade 7. Independent variables included injunctive norms (aggregating measures of school-wide coolness ratings of each substance use) and descriptive norms (aggregating the prevalence of school substance use) in Grade 7. Dependent variables included binge drinking and current use of alcohol, tobacco and marijuana in Grade 9. Associations between each type of school-wide social norm and substance use behaviors in Grade 9 were tested using multilevel logistic regression, adjusting for covariates. In unadjusted models, both injunctive and descriptive norms each significantly predicted subsequent substance use. In fully adjusted models, injunctive norms were no longer significantly associated with Grade 9 use, but descriptive norms remained significantly associated with tobacco and marijuana use in the expected direction. The findings identify descriptive social norms in the school context as a particularly important area to address in adolescent substance use prevention efforts

The relative importance of dissatisfaction, overvaluation and preoccupation with weight and shape for predicting onset of disordered eating behaviors and depressive symptoms over 15 Years

OBJECTIVE: The aim of this study was to examine the relative importance of dissatisfaction, overvaluation, and preoccupation with body weight and shape in predicting increases in disordered eating behaviors and depressive symptoms from adolescence through to early adulthood. METHOD: The study involved 1,830 participants (60% female) who completed the Project EAT survey during adolescence (mean age = 14.90 years, SD = 1.65 years) and again, 15 years later, in early adulthood. Participants provided assessments of dissatisfaction, overvaluation and preoccupation with weight and shape, as well as disordered eating and depressive symptoms at both time points. RESULTS: The three aspects of body image had distinct patterns of association with the outcomes both concurrently and longitudinally. Dissatisfaction predicted depressive symptoms as well as a wide range of disordered eating outcomes, including dieting, unhealthy weight control behaviors (UWCBs), and binge eating, particularly in female participants. Preoccupation was associated with all of these disordered eating behaviors (but not with depressive symptoms) and was notably the strongest predictor of dieting and UWCBs in female participants. Overvaluation was associated with both disordered eating and depressive symptoms, although typically was a less potent predictor of difficulties than the other aspects of body image. DISCUSSION: Dissatisfaction, overvaluation, and preoccupation are related but make distinct contributions to clinically significant outcomes. Models of eating disorders should move beyond focusing exclusively on dissatisfaction or overvaluation toward a broader conceptualisation of body image. Findings from this study particularly suggest the importance of considering preoccupation with weight and shape

Physical Activity and Screen Time in Adolescents and Their Nominated Friends

Background: The social transmission of obesity has been reported in adolescent social networks. However, the behavioral antecedents to obesity (physical activity [PA], screen time, and diet) are the factors that would actually be transmitted through these networks. To date, little is known about the social influences affecting an individual adolescent’s PA and screen time behaviors. Purpose: To determine the associations between an adolescent’s PA and screen time and his/her nominated friends’ PA and screen time. Methods: Data were obtained from EAT 2010 (Eating and Activity among Teens), a large cross-sectional study (n=2,126) conducted in 20 middle schools and high schools in Minneapolis/St. Paul, Minnesota, USA during the 2009-2010 academic year. Each participant (Ego) nominated up to six friends (Alters) from a school roster and data from those friends was also obtained as part of the school-based data collection procedures. PA and screen time were assessed with previously used and validated questionnaires. Generalized estimating equation models, stratified by gender, were used to assess associations between adolescents’ PA and screen time and their friends’ PA and screen time. Results: Females’ PA was associated with their male and female friends’ PA, including their female best friends (all p\u3c0.05). Males’ PA was associated with their female friends’ PA (p\u3c0.03). Females’ screen time was associated with their male and female friends’ screen time (p\u3c0.03), but not with their best friends. Males’ screen time was only associated with their female friends’ screen time (p=0.04). Conclusions: The associations between individual and friend PA and screen time, especially in females, indicate a need to consider these social relationships when investigating weight-related behaviors in adolescents. Longitudinal data using validated measures of PA and screen time, and analyzed using sophisticated modeling techniques are needed to better understand social influences on adolescent weight-related behaviors and inform future intervention efforts

Is intuitive eating a privileged approach? Cross-sectional and longitudinal associations between food insecurity and intuitive eating

Abstract Objective: To examine: (1) cross-sectional and longitudinal associations between measures of food insecurity (FI; household status and youth-reported) and intuitive eating (IE) from adolescence to emerging adulthood; and (2) the association between FI persistence and IE in emerging adulthood. Design: Longitudinal population-based study. Young people reported IE and FI (two items from the US Household Food Security Module) in adolescence and emerging adulthood. Parents provided data on household FI via the six-item US Household Food Security Module in adolescence. Setting: Adolescents (M age = 14·3 ± 2 years) and their parents, recruited from Minneapolis/St. Paul public schools in 2009–2010 and again in 2017–2018 as emerging adults (M age = 22·1 ± 2 years). Participants: The analytic sample (n 1372; 53·1 % female, 46·9 % male) was diverse across race/ethnicity (19·8 % Asian, 28·5 % Black, 16·6 % Latinx, 14·7 % Multiracial/Other and 19·9 % White) and socio-economic status (58·6 % low/lower middle, 16·8 % middle and 21·0 % upper middle/high). Results: In cross-sectional analyses, youth-reported FI was associated with lower IE during adolescence (P = 0·02) and emerging adulthood (P < 0·001). Longitudinally, household FI, but not adolescent experience of FI, was associated with lower IE in emerging adulthood (P = 0·01). Those who remained food-insecure (P = 0·05) or became food-insecure (P = 0·02) had lower IE in emerging adulthood than those remaining food-secure. All effect sizes were small. Conclusions: Results suggest FI may exert immediate and potentially lasting impacts on IE. As evidence suggests IE is an adaptive approach conferring benefits beyond eating, it would be valuable for interventions to address social and structural barriers that could impede IE

Weight-related teasing in the school environment: associations with psychosocial health and weight control practices among adolescent boys and girls

Weight-related teasing has been found to be associated with low self-esteem, depressive symptoms, body dissatisfaction, and weight control behaviors in adolescents. While research has typically examined weight-related teasing directed towards the individual, little is known about weight-related teasing at the school level. This study aimed to determine the association between the school-level prevalence of weight-related teasing and psychosocial factors, body dissatisfaction and weight control behaviors in adolescents. Adolescents (N = 2,793; 53.2 % female) attending 20 US public middle and high schools were surveyed as part of the Eating and Activity in Teens (EAT) 2010 study. Generalized estimating equations were used to estimate the association between school-level weight-related teasing and health variables, controlling for individual-level weight-related teasing, clustering of individuals within schools, and relevant covariates. A greater school-level prevalence of weight-related teasing was associated with lower self-esteem and greater body fat dissatisfaction in girls, and greater depressive symptoms in boys, over and above individual-level weight-related teasing.Dieting was associated with the school-level prevalence of weight-related teasing in analysis adjusted for covariates in girls, but not following adjustment for individual-level weight-related teasing. Unhealthy weight control behaviors, extreme weight control behaviors, and muscle-enhancing behaviors were not associated with the school-level prevalence of weight-related teasing in girls or boys. Findings from the current study, in conjunction with previous findings showing associations between weight-related teasing, psychological concerns, and weight control behaviors, highlight the importance of implementing strategies to decrease weight-related teasing in schools

Social influences on substance-use behaviors of gay, lesbian, and bisexual college students: findings from a national study

A variety of social factors are expected to contribute to health behaviors among college students. The goal of this paper is to describe the relationships of two different aspects of the campus social environment, namely the campus resources for gay, lesbian, and bisexual (GLB) students and the campus-wide behavioral norms of substance use, to the individual substance-use behaviors of college students with same-sex experiences. Individual-level data come from 630 college students reporting same-sex experience, who were part of a national random sample returning questionnaires. Current cigarette smoking and binge drinking were examined. College-level data regarding the campus resources designed for GLB students were collected and used with campus-wide substance-use norms to predict individual substance use in logistic regression analyses. One-third to one-half of students reported current smoking and binge drinking, by sex and sex-partner category. The presence of GLB resources was inversely associated with women's smoking and directly associated with men's binge drinking behaviors. The proportion of students reporting same-sex behavior on campus was directly associated with these same outcomes, and behavioral norms were not associated with either outcome. Findings provide a glimpse into the influence of the social environment on the use of two of the most widely used substances at American colleges, and suggest that contextual approaches to explaining and controlling substance use may be important.Social influences Substance use Sexual behavior Homosexuality USA

Connections That Moderate Risk Of Non-Suicidal Self-Injury Among Transgender And Gender Non-Conforming Youth

We examined associations between social connections and non-suicidal self-injury (NSSI) among transgender/gender non-conforming (TGNC) youth. Data came from the 2016 Minnesota Student Survey (N = 2168). Logistic regression analyses determined connectedness factors associated with any past-year NSSI and repetitive NSSI, as well as moderating effects of significant connectedness factors on different risk factors. Almost 55% of TGNC students engaged in NSSI, and 40% of self-injurers reported repetitive self-injury. Parent connectedness, connections to non-parental adults, and school safety emerged as robust protective factors. Strategies to prevent/reduce NSSI should focus on fostering connections with prosocial adults, and ensuring schools represent safe places