Health Behaviour In School-aged Children Research Articles

Mental health profiles of 15-year-old adolescents in the Nordic Countries from 2002 to 2022: person-oriented analyses

BackgroundStudies of time trends in Nordic adolescents' mental health have often relied on analyses of adolescents’ psychosomatic symptoms. In this study, we examine adolescents' self-reports on mental health in the context of the dual factor model, which encompasses both overt manifestations of mental health symptoms and subjective perception of one's health status.MethodThe objective of this study was to employ a person-oriented approach utilizing cluster analysis to discern time trends in mental health profiles of Nordic adolescents, using their psychosomatic complaints and their perception of their overall health as cluster variables. The resulting health profiles were then subjected to a comparative analysis with regard to different measures of psychological and social adjustment. The mental health profiles were based on data from the Health Behaviour in School-aged Children (HBSC) survey, which was conducted among almost 50000 15-year-olds in five Nordic countries (Denmark, Finland, Iceland, Norway, and Sweden) between 2002 and 2022.ResultsMental health profiles exhibiting comparable content were observed in all Nordic countries, including profiles indicating adequate health, perceived good health, perceived poor health, high psychosomatic complaints, and dual health problems (defined as both high psychosomatic complaints and perceived poor health). These health profiles showed similar trends over time in the Nordic countries. Significant gender differences were observed. In 2002, adequate health was the dominant profile for both sexes. After 20 years, however, the high psychosomatic profile became the most common profile among girls. Among the three risk profiles, namely perceived poor health, high psychosomatic complaints and dual health problems, adolescents in the dual problems profile had the most psychological and social adjustment problems.ConclusionsThe comparatively lower incidence of adjustment problems among adolescents in the high psychosomatic profile relative to the dual mental health group challenges the prevailing view that there has been a sharp increase in mental health problems among Nordic adolescents. This view was largely based on the observed rise in psychosomatic symptoms. Indeed, there was a doubling in the proportion of adolescents in the high psychosomatic complaints profile between 2002 and 2022. This increase was considerably more pronounced than that observed for the dual health problems profile which exhibited most problems.

Cross-National Study on the Convergent, Discriminant, and Concurrent Validity of the “Body Size Perception” Item in the Health Behaviour in School-aged Children Survey

BackgroundDespite its significant usefulness in adolescent health studies, the single-item “body size perception” question, developed within the Health Behaviour in School-aged Children (HBSC) survey, has yet to undergo multidimensional validation. ObjectivesTo assess the convergent, divergent and concurrent validity of the HBSC body size perception question among adolescents. MethodsThe single-item HBSC body size perception question is as follows: “Do you think your body is…?,” with answers ranging from “much too thin” to “much too fat.” Fifteen-year-old participants included in the analysis were 72,086 from 45 HBSC countries in 2017/18 (concurrent validity), and 595, 127, and 615 in 2021/22 in French-speaking Belgium, Ireland, and Poland, respectively. The convergent, divergent, and concurrent validity was assessed with body dissatisfaction, social desirability, and selfesteem, respectively. The concurrent validity was also examined with body mass index (BMI) from the 2017/18 HBSC data. All analyses were sex-stratified. ResultsCohen’s Kappa values were 0.67 [confidence interval (CI): 95%: 0.62, 0.72] and 0.64 (0.59, 0.69) for boys and girls, respectively, in all 3 countries together. Body size perception was associated with social desirability, selfesteem, and BMI, with a stronger association in girls than that in boys. For instance, girls with higher social desirability were less likely to perceive themselves as “too thin” [Relative Risk Ratio (RRR) = 0.78 (0.69, 0.89)] rather than as the “right size.” Boys with higher selfesteem were less likely to perceive themselves as “too fat” [0.93 (0.90, 0.97)] rather than the “right size.” Girls with underweight were less likely to perceive themselves as “too fat” [0.38 (0.34, 043)] rather than “right size” and girls with overweight/obesity were more likely to perceive themselves as such [8.19 (7.49, 8.95)]. ConclusionsThe single-item HBSC body size perception question demonstrated good convergent, divergent, and concurrent validity. It reflects adolescents’ own perception of body size, possibly influenced by societal norms and ideals.

Adolescents perception of the COVID-19 pandemic restrictions and associated mental health and well-being: gender, age and socioeconomic differences in 22 countries

BackgroundThe COVID-19-pandemic has had a profound impact on the lives of adolescents worldwide. This study examined the subjective perception of the COVID-19 pandemic measures and its association with mental health and well-being (i.e., loneliness, life satisfaction and multiple health complaints) among 13- and 15-years-old adolescents from 22 countries.MethodsData from the cross-national Health Behaviour in School-aged Children (HBSC) 2021/22 study were used from representative samples of 22 countries (N = 67,544; 51.9% girls). The self-perceived impact of COVID-19 measure comprised 10 items asking about the impact on several dimensions of adolescent lives (e.g., relationships with family and friends, health, or eating behaviours). Measures of loneliness, multiple health complaints, and life satisfaction were included as indicators of mental health and well-being. A non-parametric multilevel latent class analysis considering individual and country-levels was conducted to identify classes of self-perceived impact of the COVID-19 measures. Multilevel logistic regression models adjusted by age and socioeconomic status were applied to assess the association between COVID-19 measure impact classes and mental health.ResultsThree classes were identified on individual level encompassing a neutral (51%), positive (31%), or negative (18%) perception of COVID-19 measures. A third of the adolescents reported a positive impact of the pandemic measures. The distribution of classes was heterogeneous within and across countries. Within the positive COVID-19 measure impact class, social relationships were the most important dimension, whereas mental health problems were mostly represented within the negative COVID-19 measure impact class. Girls with a negative perception of pandemic measures showed higher levels of loneliness and multiple health complaints and lower life satisfaction. 15-year-old adolescents and those with a low socioeconomic status reported higher levels of loneliness and lower life satisfaction.ConclusionsThe majority of adolescents perceived the pandemic measures as neutral or positive. Girls, 15-year-old adolescents, and those with low socioeconomic status were at higher risk of suffering from pandemic measures and associated problems of loneliness, multiple health complaints, and low life satisfaction. We conclude that adolescent’s mental health and well-being should be considered in the decision-making process by ensuring that the unique challenges of adolescents are adequately addressed in policies.

Perceived Social Support and Health Care Spending as Moderators in the Association of Traditional Bullying Perpetration with Traditional Bullying and Cyberbullying Victimisation among Adolescents in 27 European Countries: A Multilevel Cross-National Study.

Existing research has documented the association between bullying perpetration and bullying victimisation. However, it is still unclear how different sources of social support moderate the association between bullying perpetration and bullying victimisation at a cross-national level. Using multilevel binary logistic regression models, this study examined the moderating role of public health care spending and perceived social support (i.e., family and teacher support) in the association between traditional bullying perpetration and victimisation by traditional bullying and cyberbullying among adolescents across 27 European countries. Country-level data were combined with 2017/18 Health Behaviour in School-aged Children (HBSC) survey data from 162,792 adolescents (11-, 13-, and 15-year-olds) in 27 European countries. Results showed that adolescents who perpetrated traditional bullying had a higher likelihood of being victimised by traditional bullying and cyberbullying than adolescents who did not bully others. Results also indicated that the magnitude of the positive association between traditional bullying perpetration and victimisation by traditional bullying and cyberbullying was mitigated among adolescents with more family, teacher, and public health care support. These findings support the notion that multilayered systems of social support could play a vital role in bullying prevention and intervention strategies to address bullying among adolescents.

Impact of Digital Media, School Problems, and Lifestyle Factors on Youth Psychosomatic Health: A Cross-Sectional Survey.

Post-pandemic psychosomatic complaints in children and adolescents have been underreported. This study investigated psychosomatic complaints in children and adolescents in Northern Italy in 2023, with the aim of identifying changes in predictors and vulnerable subgroups. Cross-sectional data representative of scholars from a northern Italian province were analyzed using the Health Behavior in School-aged Children (HBSC) checklist. The sum scores, count data, and dichotomized data were examined, and predictor effects were expressed using a linear regression model for the sum scores. Data from 4525 participants (aged 7-19 years, 50.5% girls) were analyzed. Psychosomatic symptoms remained unchanged after the pandemic. Significant gender differences were noted, especially in older age groups, with girls reporting more complaints. Factors such as children's health, digital media use, and school problems significantly influence psychosomatic outcomes. While migration background negatively affected girls' psychosomatic well-being, boys showed improvement through sports. The psychosomatic well-being of children and adolescents did not improve after the pandemic. These findings indicate the need for targeted interventions, improved health literacy, and ongoing monitoring to support the mental well-being of this vulnerable population. Reducing screen time remains a critical strategy for enhancing youth well-being.

School pressure and psychosomatic complaints among Swedish adolescents: does physical activity play a buffering role?

School pressure is a significant stressor in the lives of adolescents, recognised to be associated with psychosomatic complaints. Therefore, the exploration of potential buffering factors is a relevant task. This study aimed to examine the association between school pressure and psychosomatic complaints and the potentially moderating role of physical activity in a Swedish national sample of adolescents. Data were derived from the 2017/2018 Swedish Health Behaviour in School-aged Children (HBSC) survey, involving 3,745 participants aged 11-15 years. School pressure and physical activity were measured using single items. Psychosomatic complaints were assessed through an additive index based on the frequency of eight complaints. Covariates included gender, grade, and family affluence. Linear regression analyses demonstrated a positive graded association between school pressure and psychosomatic complaints, while an inversely graded association was observed between physical activity and psychosomatic complaints. Physical activity did, however, not moderate the link between school pressure and psychosomatic complaints. Even though physical activity did not serve as a buffer, the direct effects of school pressure and physical activity on psychosomatic complaints suggest that supporting young people in managing school demands and promoting their engagement in physical activities could be effective measures in alleviating psychosomatic complaints.

Mental health and BMI in children and adolescents during one year in obesity treatment

BackgroundMental health plays a major role in children and adolescents with obesity. The aim of this study was (1) to compare mental health in children with obesity with the background population and (2) to investigate if mental health changed during one year in an obesity treatment program.MethodsData on self-reported mental health was collected in 107 children and adolescents (mean age 13.2 years) with obesity at first visit in an obesity treatment program and at one year follow-up (n = 47). Mental health was assessed by eight questions from the Danish Health Behaviour in School-aged Children (HBSC) questionnaire: (1) self-rated health (2) life satisfaction (3) feeling low (4) body-image (5) loneliness (6) self-esteem (7) self-efficacy and (8) social competence. Data was compared to a reference population based on HBSC data. BMI-SDS was based on Danish reference values.ResultsChildren and adolescents with obesity had significantly higher odds of reporting negative body image and feeling low and lower odds of reporting high self-rated health and high self-esteem compared to a reference population. There was no difference between the groups regarding life-satisfaction, social competence, self-efficacy or feeling lonely. There were no significant changes in mental health from first visit to one-year follow-up.ConclusionOur findings highlight the mental health difficulties in children and adolescents with obesity, and the importance of addressing these issues in obesity treatment. The results also indicate that children with obesity have psychosocial resources that should be exploited in treatment protocols.

School socioeconomic status and psychological complaints among adolescents in 44 countries: The mediating role of schoolwork pressure and classmate support and the moderating role of family SES and country-level income inequality

Previous research has reported both positive and negative associations between school socioeconomic status (SES) and internalizing problems among adolescents. Little is known about cross-national differences in this association, as well as potential mediators and moderators. Therefore, this study investigated this association using representative cross-national samples of adolescents whilst exploring the mediating role of schoolwork pressure and classmate support, and the moderating role of family SES and country-level income inequality. Using data from adolescents aged 11–15 from 44 countries, participating in the 2017/2018 Health Behaviour in School-aged Children (HBSC) study (N = 202,202), we employed multilevel regression models with cross-level interactions. School SES was operationalized as the average family affluence of adolescents within a school and psychological complaints (e.g., feeling low/depressed) were used as an indication of internalizing problems. On average across countries, adolescents in higher SES schools reported more psychological complaints, with a large effect size. However, differences in this association were observed across countries, with a positive association in 19 out of 44 countries, a negative association in one country, and nonsignificant associations in the remaining countries. Schoolwork pressure partially mediated the average association between school SES and psychological complaints, as school SES was positively associated with schoolwork pressure which was associated with more psychological complaints. Our results did not support the mediating role of classmate support. Also, we found a moderating effect of family SES, indicating a stronger positive association between school SES and psychological complaints for those with a below average family SES compared to those with an average and above average family SES. No moderating effect was observed for country-level income inequality. These findings suggest that adolescents with low family SES attending higher SES schools are especially at risk for psychological complaints, and may therefore require tailored support. A promising strategy to reduce psychological complaints entails addressing schoolwork pressure.

Overcoming Barriers: Trajectories for a School Environment That Promotes the Participation of Adolescents with Chronic Conditions

The characteristics of the school environment can influence students’ participation. Therefore, exploring the existing barriers to school participation and academic success of students with chronic conditions (CCs) is essential since they are a population at an increased risk for impairments and difficulties in these areas. This specific study aimed to explore the personal and school-environment variables associated with the school participation of students with CCs. Additionally, it aimed to analyze the differences between (1) male and female adolescents concerning the impact of CCs on school participation and the personal and school-environment variables; and (2) adolescents with and without school participation affected by the existing CCs regarding personal and school-environment variables. This work included 1442 adolescents with CCs, 56.3% female (n = 769), with a mean age of 15.17 years (SD = 2.33), participating in the Health Behavior in School-Aged Children (HBSC) 2022 study. The results showed that girls and students with school participation affected by CCs are at greater risk regarding the personal and school-environment variables under study. In the multivariable logistic regression analysis of the association between these variables and the school participation of students with CCs, a greater weight of personal variables was observed, followed by those of the school environment related to interpersonal relationships and, finally, the physical environment and safety-at-school variables. The study highlights the relevance of considering the existing barriers to school participation and academic success of students with CCs. The results also underline the importance of aligning the intervention of health and education professionals and policymakers. All of these professionals must make a joint effort to overcome existing barriers in the school context and move towards an increasingly balanced environment that promotes and protects the equal participation of all students.

A latent class analysis of international change and continuity in adolescent health and wellbeing: A repeat cross-sectional study.

Since the early 2000s, there have been marked trends in adolescent health and wellbeing indicators across Europe, North America and Australia. In particular, there have been substantial declines in youth drinking. We know little about how these trends are underpinned by co-occurring indicators within individuals. This paper aims to analyse change over time in how indicators cluster within individuals and differences in these patterns between five countries with different trends in youth drinking. We analysed four waves of repeat cross-sectional survey data from 15-year-olds in England (n = 5942), Italy (n = 5234), the Netherlands (n = 5408), Hungary (n = 5274), and Finland (n = 7446), which were included in the Health Behaviours in School-aged Children (HBSC) study between 2001/02 and 2013/14. We defined clusters of individuals using multigroup latent class analyses which accounts for change over time. The class indicators included health behaviours, attitudes, wellbeing and relationships. We modelled associations between class membership, sex, and family affluence over time. We identified four classes in all countries: Overall unhealthy, Overall healthy, Moderately healthy and Substance abstainers with behaviour risk indicators. The proportion of adolescents in the Overall unhealthy class declined between 2001/02 and 2013/14 by between 22.8 percentage points (pp) in England and 3.2pp in Italy. The extent to which indicators of health and wellbeing changed as linked clusters differed across countries, but changes in alcohol consumption, smoking, drug use and sexual activity were typically concurrent. Adolescents with low family affluence were more likely to be in the Overall unhealthy class in all years. Improvements in indicators of adolescent health and well-being are due mainly to concurrent declines in drinking, smoking, sexual activity, and cannabis use, but these declines are not consistently associated with improvements in other domains. They have also not led to reductions in inequalities in indicators of health and well-being.

Social media threats and health among adolescents: evidence from the health behaviour in school-aged children study

BackgroundSocial media are immensely popular among adolescents. Thus, concerns have been raised about the threats adolescents encounter on social media and the possible negative health consequences, such as depressive symptoms and anxiety. This study investigated the prevalence of nine social media threats: (1) cyberbullying, (2) sexual harassment, (3) racism, (4) unauthorized distribution of sensitive material, (5) phishing attempts, (6) misinformation, (7) the sale or distribution of drugs, (8) harmful or dangerous social media challenges, (9) content causing appearance pressures. The study also investigated how individual and social factors, problematic social media use (PSMU), and online communication with strangers are associated with social media threat exposure, as well as the association between social media threats and self-rated health, depressive feelings, and anxiety symptoms.Methods and findingsNationally representative Health Behaviour in School-aged Children (HBSC) data from Finland were obtained from 2288 respondents aged 11, 13, and 15 years. Fixed effects regression models were applied. The most common threat, encountered daily and weekly, was misinformation. Regression models showed that individual and social factors, PSMU, and online communication with strangers explained adolescent exposure to social media threats in differing ways. Furthermore, certain factors (e.g., emotional intelligence, family support) were associated with encountering social media threats less frequently, whereas other factors (e.g., PSMU, online communication with strangers) were associated with more frequent encounters. Daily and weekly exposure to social media threats was systematically associated with poor self-rated health, frequent depressive feelings, and anxiety symptoms.ConclusionsOur study highlights the need for intervention and health promotion efforts to mitigate adolescent exposure to social media threats and ensuing negative health consequences.

Is family meal frequency associated with obesity in children and adolescents? A cross-sectional study including 155 451 participants from 43 countries.

This study tried to examine the association between the frequency of family meals and excess weight using large and representative samples of children and adolescents from 43 countries. This cross-sectional study used data from the Health Behaviour in School-aged Children (HBSC), which included nationally representative samples of children and adolescents aged 10-17 years, involving a total of 155 451 participants (mean age = 13.6 years; standard deviation [SD] = 1.6; 51.4% girls). Family meal frequency was gauged through the following question: 'How frequently do you and your family typically share meals?' The possible responses were: 'never', 'less often', 'approximately once a week', 'most days' and 'every day'. The body weight and height of the participants were self-reported and utilized to calculate body mass index (BMI). Subsequently, BMI z-scores were computed based on the International Obesity Task Force criteria, and the prevalence of excess weight was defined as +1.31 SD for boys and + 1.24 SD for girls, with obesity defined as +2.29 SD for boys and + 2.19 SD for girls. Generalized linear mixed models were conducted to examine the associations between the frequency of family meals and excess weight or obesity. The lowest predicted probabilities of having excess weight and obesity were observed for those participants who had family meals every day (excess weight: 34.4%, 95% confidence interval [CI] 31.4%-37.5%; obesity: 10.8%, 95% CI 9.0%-13.0%). A higher frequency of family meals is associated with lower odds of having excess weight and obesity in children and adolescents.

The Social Self-Efficacy Scale for Spanish and Portuguese (13–18-Year-Olds) Adolescents: Psychometric Properties and Measurement Invariance

Introduction: Social self-efficacy refers to peoples’ beliefs about their ability to establish effective social relationships. During adolescence, it has been related to positive social relationships, skills to cope with adverse experiences, and health. While prior research has focused on the general dimension of self-efficacy, this study aims to examine the reliability and validity of the subscale social self-efficacy in Spanish and Portuguese adolescents across gender, age, and country. Method: The sample, selected from the 2018 Health Behaviour in School-aged Children (HBSC) study, was composed of 20,691 13–18-year-old adolescents from Spain and Portugal (48.2% boys and 51.8% girls). The scale’s reliability and internal and external validity were examined systemically across sex, age, and country, as well as testing measurement invariance according to these variables. Results: Data showed adequate evidence of reliability ( α = 0.85), as well as internal and external validity, thus demonstrating the scale’s stability and applicability in similar research contexts. Conclusions: Social self-efficacy fosters individual and social well-being in youth, as well as healthy and positive development. Use of this subscale in evaluation and intervention programs could further our understanding about different dimensions of adolescent development.

Associations of Eating Habits with Self-Rated Health and Life Satisfaction in Adolescents: A 42-Country Cross-Sectional Study.

The aim of this study was to explore the associations of eating habits with self-rated health and life satisfaction in adolescents using a multiple-country sample. Cross-sectional data from the Health Behavior in School-Aged Children (HBSC) 2013/2014 wave was used in this study. A self-reported questionnaire was used to collect data on independent variables including breakfast on weekdays, breakfast at weekends, and consumption of fruits, vegetables, sweets, and soft dirks. Outcomes included self-rated health and life satisfaction. Regression models were used to assess the associations between the independent variables and the two outcomes, separately, after controlling for covariates. Results were presented using odds ratios (ORs) and 95% confidence intervals (CIs). Of all the study participants (aged 11-15 years), 50.8% were girls. Compared with no consumption of breakfast on weekdays, eating breakfast for five days had 1.22 times greater likelihood for improved self-rated health (OR = 1.22, 95% CI: 1.19-1.25, p < 0.001). Participants who ate breakfast for both days (OR = 1.41, 95% CI: 1.36-1.46, p < 0.001) and one day (OR = 1.12, 95% CI = 1.08-1.17, p < 0.001) were more likely to experience improved self-rated health compared to never eating breakfast at weekends. Five or more days for fruit and vegetable consumption resulted in better self-rated health (all p < 0.001). Similar results were found in terms of the associations of breakfast, fruit, and vegetable consumption with life satisfaction. For example, a higher frequency of fruit intake was associated with enhanced self-rated health (e.g., OR for more than once daily = 1.42, 95% CI: 1.34-1.51, p < 0.001) compared to no fruit consumption. Similarly, a higher-frequency vegetable intake, such as more than once daily (OR = 1.33, 95% CI: 1.26-1.39, p < 0.001), was associated with improved self-rated health. Healthy eating habits, especially regular breakfast and a higher consumption of vegetables and fruit, are associated with better self-rated health and life satisfaction in school-aged children. Of note, the consumption of fruit would have the greatest impact on health and wellbeing outcomes. This study offers evidence that healthy eating habits can play a vital role in school-aged children's health and wellbeing, highlighting the practical significance of educating adolescents to develop healthy eating habits.

Dose-Dependent Association Between Body Mass Index and Mental Health and Changes Over Time

Overweight and obesity affect 340 million adolescents worldwide and constitute a risk factor for poor mental health. Understanding the association between body mass index (BMI) and mental health in adolescents may help to address rising mental health issues; however, existing studies lack comprehensive evaluations spanning diverse countries and periods. To estimate the association between BMI and mental health and examine changes over time from 2002 to 2018. This was a repeated multicountry cross-sectional study conducted between 2002 and 2018 and utilizing data from the Health Behaviour in School-aged Children (HBSC) survey in Europe and North America. The study population consisted of more than 1 million adolescents aged 11 to 15 years, with all surveyed children included in the analysis. Data were analyzed from October 2022 to March 2023. Mental health difficulties were measured by an 8-item scale for psychological concerns, scoring from 0 to 32, where a higher score reflects greater psychosomatic issues. BMI was calculated using weight divided by height squared and adjusted for age and sex. Data were fitted by multilevel generalized additive model. Confounders included sex, living with parents, sibling presence, academic pressure, the experience of being bullied, family affluence, screen time, and physical activity. Our analysis of 1 036 869 adolescents surveyed from 2002 to 2018, with a mean (SD) age of 13.55 (1.64) years and comprising 527 585 girls (50.9%), revealed a consistent U-shaped association between BMI and mental health. After accounting for confounders, adolescents with low body mass and overweight or obesity had increased psychosomatic symptoms compared to those with healthy weight (unstandardized β, 0.14; 95% CI, 0.08 to 0.19; unstandardized β, 0.27; 95% CI, 0.24 to 0.30; and unstandardized β, 0.62; 95% CI, 0.56 to 0.67, respectively), while adolescents with underweight had fewer symptoms (unstandardized β, -0.18; 95% CI, -0.22 to -0.15). This association was observed across different years, sex, and grade, indicating a broad relevance to adolescent mental health. Compared to 2002, psychosomatic concerns increased significantly in 2006 (unstandardized β, 0.19; 95% CI, 0.11 to 0.26), 2010 (unstandardized β, 0.14; 95% CI, 0.07 to 0.22), 2014 (unstandardized β, 0.48; 95% CI, 0.40 to 0.56), and 2018 (unstandardized β, 0.82; 95% CI, 0.74 to 0.89). Girls reported significantly higher psychosomatic concerns than boys (unstandardized β, 2.27; 95% CI, 2.25 to 2.30). Compared to primary school, psychosomatic concerns rose significantly in middle school (unstandardized β, 1.15; 95% CI, 1.12 to 1.18) and in high school (unstandardized β, 2.12; 95% CI, 2.09 to 2.15). Our study revealed a U-shaped association between adolescent BMI and mental health, which was consistent across sex and grades and became stronger over time. These insights emphasize the need for targeted interventions addressing body image and mental health, and call for further research into underlying mechanisms.

National Dietary Survey on the children population

Abstract The national food consumption survey on the children population in Poland was conducted from August 2019 to February 2020 and was funded by EFSA under the EU Menu project. It aimed at collecting food consumption data of a representative sample of children living in Poland and followed the EFSA EU Menu methodology. Altogether 2605 subjects aged three months to nine years old were invited to participate in the study out of which participants were 1,574 children (780 boys and 794 girls) with a response rate of 60%. An additional group of 300 vegetarians aged six to nine years old was also recruited. After verifying the collected data, EFSA accepted the data from 1565 subjects (777 boys, 788 girls) in the main group and 294 subjects (147 boys, 147 girls) in the group of vegetarians. Data on food consumption was collected by means of two non‐consecutive food dietary record method using a web‐based tool intended for 24‐hour dietary recall method. In addition, a food propensity questionnaire was used. Anthropometric measurements of height, weight, waist and hip circumferences were made to assess the nutritional status of the participants. The level of physical activity was assessed with a short questionnaire, using questions from HBSC (Health Behaviour in School‐aged Children) Polish Study. Before the main study the pilot study was conducted for verifying the feasibility of the study organization. The collected data will be used to update the Comprehensive European Food Consumption Database, which is regulated and administered by EFSA. The results will allow the evaluation of diet and nutritional status of children in Poland, including the prevalence of underweight, overweight and obesity.

Problematic social media use mediatesthe effect of cyberbullying victimisation on psychosomatic complaints in adolescents.

Adolescent psychosomatic complaints remain a public health issue globally. Studies suggestthat cyberbullying victimisation, particularly on social media, could heighten the risk of psychosomatic complaints. However, the mechanisms underlying theassociationsbetween cyberbullying victimisationandpsychosomatic complaints remain unclear. This cross-cultural study examines the mediating effect of problematic social media use (PSMU) on the association between cyberbullying victimisation and psychosomatic complaints among adolescents in high income countries. We analysed data on adolescents aged 11-16.5years (weighted N = 142,298) in 35 countries participating in the 2018 Health Behaviour in School-aged Children(HBSC) study. Path analysis using bootstrapping technique tested the hypothesised mediating role of PSMU. Results from the sequential binary mixed effects logit models showed that adolescents who were victims of cyberbullying were 2.39 times significantly morelikely to report psychosomatic complaints than those who never experienced cyberbullying (AOR = 2.39; 95%CI = 2.29, 2.49). PSMU partially mediated the association between cyberbullying victimisation and psychosomatic complaints accounting for 12% ( =0.01162, 95%CI = 0.0110, 0.0120) of the total effect. Additional analysis revealed a moderation effect of PSMU on the association between cyberbullying victimisation and psychosomatic complaints. Our findings suggest that while cyberbullying victimisation substantially influences psychosomatic complaints, the association is partially explained by PSMU. Policy and public health interventions for cyberbullying-related psychosomatic complaints in adolescents should target safe social media use.

Country-level sociocultural context and socioeconomic inequalities in adolescent dietary behaviours: A multilevel analysis in 21 European countries

Studies to date have predominantly focused on countries' socioeconomic conditions (e.g., income inequality) to explain cross-national differences in socioeconomic inequalities in adolescent health (behaviours). However, the potential explanatory role of sociocultural contexts at country-level remains underexamined. This study examined whether the country-level sociocultural context and changes thereof were associated with adolescent socioeconomic inequalities in dietary behaviours. International comparative data of 344,352 adolescents living in 21 countries participating in 2002, 2006, 2010 and 2014 waves of the Health Behaviour in School-aged Children (HBSC) survey were combined with aggregated levels of openness-to-change from the European Social Survey (ESS). Four dietary behaviours (i.e., fruit, vegetable, sweets and soft drink consumption) and two measures of socioeconomic status (SES) on the individual level (i.e., family affluence scale [FAS] and occupational social class [OSC]) were studied. Multilevel logistic regression analyses returned contrasting results for the two SES measures used. In countries with higher levels of openness-to-change, smaller FAS inequalities in daily fruit, sweets and soft drink consumption were observed, but no such inequalities were found for vegetable consumption. Conversely, in these countries, larger OSC inequalities in soft drink consumption were found. Country-specific changes in openness-to-change over time were not associated with the magnitude of adolescent dietary inequalities. Findings underscore the importance of including country-level sociocultural contexts to improve the understanding of cross-national differences in socioeconomic inequalities in adolescents’ diets. Future studies, spanning a longer timeframe, are required to examine whether such associations exist within countries over time since our timeframe might have been too small to capture these long-term trends.

Problematic social media use and psychological symptoms in adolescents.

This study examined time trends in significant child and adolescent psychological symptoms and explored the association of frequent and problematic social media use with these symptoms. Time trends in psychological symptoms were assessed using data from five waves of the international survey of Health Behavior in School-aged Children (HBSC), conducted between 2001 and 2018 (N = 1,036,869). The associations of frequent and problematic social media use with significant psychological symptoms were assessed by hierarchical multinomial logistic regression using data from 2001-2002 and the 2017-2018 survey waves. The direction of effect between social media use variables and psychological symptoms was explored using Linear Non-Gaussian Acyclic Models (LiNGAM). Prevalence of more severe psychological symptoms increased from 6.7% in 2001-2002 to 10.4% in the 2017-2018 survey waves. The increase was especially large among 15-year old and older girls: from 10.9 to 19.1%. The higher prevalence of more severe psychological symptoms in 2017-2018 compared with 2001-2002 was eliminated after adjusting the model for problematic social media use. LiNGAM analysis supported the direction of effect going from social media use and problematic social media use to psychological symptoms. The findings suggest that frequent and problematic use of social media contribute to the increasing trend of psychological symptoms in adolescents in recent years.

Depression, stress, and anxiety versus internet addiction in early and middle adolescent groups: the mediating roles of family and school environments

BackgroundFamily and school environment play a crucial role across the different developmental stages of adolescence. This paper investigates the potential mediating role of family and school environments in the relationship between the three psychosocial predictors of depression, anxiety, stress, and Internet addiction (IA). Specifically, it focuses on the two stages of early and middle adolescence.MethodsThe study involved a survey of 407 adolescents from Qatar, comprising 250 early adolescents and 157 middle adolescents. Inclusion criteria for the study included adolescents between the ages of 10 to 17 years old, residents of Qatar and studying in a Qatar-based school. To assess the constructs of the three psychosocial predictors, IA, family environment, the study utilized the Depression, Stress, and Anxiety Scale (DASS), the Internet Addiction Diagnostic Questionnaire (IADQ), and the Brief Family Relationship Scale, respectively. School environment was measured using questions from the “Health Behavior in School-aged Children: WHO Collaborative Cross-National survey/study (HBSC) 2013–2014. The study applied standard mediation analysis between the DASS components and IA with family and school environment as the mediators.ResultsResults from the mediation analysis reveal insights into the relationships between psychosocial predictors and IA. The findings indicate that family and school environments partially mediated the relationship with regards to depression, stress, and anxiety in early adolescents. In middle adolescents, family environment partially mediated the relationship with depression and stress and fully mediating the relationship with anxiety. Meanwhile, school environment only exhibited partial mediation in the relationship with anxiety in middle adolescence.ConclusionsThese results highlight the crucial role parents and schools play in addressing problematic technology usage that develops as a response to depression, anxiety, and stress among adolescents. Moreover, the study reveals nuances in the mediating role of family and school environment in early and middle adolescence. This highlights the evolving nature of these influences across the different stages of development. Notably, this study contributes to the literature by moving beyond the conventional focus on the so-called WEIRD population, and offering valuable insights from a region that is underrepresented in current research.