Association between weight status and bullying experiences among children and adolescents in schools: An updated meta-analysis

Trends in adolescent violence victimization pre-, intra-, and post-COVID-19 pandemic in South Korea, 2012-2023: a nationwide cross-sectional study

BACKGROUND

Adolescent violence victimization is a major public health concern, but research has been limited by short durations and small samples, restricting long-term understanding. This study examined its trends and vulnerabilities in South Korea, focusing on the impact of COVID-19 pandemic.

METHODS

Data were collected from 740,687 nationally representative samples (7-12th grade adolescents) through the Korean Youth Risk Behavior Web-based Survey from 2012 to 2023. Violence victimization was defined as treatment at a hospital in the past 12 months due to physical, mental, or property victimization. To assess the impact of the COVID-19 pandemic, the data were categorized into pre-(2012-2019), intra-(2020-2022), and post-(2023) pandemic periods, and analyzed using weighted regression models.

RESULTS

A total of 740,687 participants (379,021 boys [51.17 %]) were included in this analysis from 2012 to 2023. The overall prevalence of adolescent violence victimization significantly declined from 2.91 % [95 % CI, 2.77-3.04] to 1.94 % [1.86-2.02] in pre-pandemic, then decreased to 1.13 % [1.03-1.24] during the early intra-pandemic, before rising to 2.29 % [2.12-2.46] in the post-pandemic. Vulnerable subgroups included students in 7-9th grades, those with depressive symptoms, attendees of all-boys schools, residents of facilities, current substance users, all exhibiting greater susceptibility to violence victimization.

CONCLUSION

This study identified a U-shaped trend in adolescent violence victimization in South Korea throughout the pandemic. Relative risk was associated with school and living environments, psychosocial factors, and substance use. Findings highlight the need for a systemic approach to interventions, addressing both individual vulnerabilities and structural factors to strengthen prevention.

School bullying among refugee and non-refugee adolescent students in Lebanon

BACKGROUND

School bullying is a significant issue affecting adolescents globally. This study explores the prevalence and predictors of bullying among refugee and non-refugee adolescents in Lebanon, focusing on sociodemographic, protective, and risk factors.

OBJECTIVE

To assess the prevalence and types of bullying and identify significant predictors, including sociodemographic variables, protective factors, and risk factors.

PARTICIPANTS AND SETTING

A cross-sectional survey was conducted with 1906 adolescents aged 12-17 from 32 public schools in Lebanon.

METHODS

Logistic regression analysis was used with sequential blocks to evaluate predictors of bullying: (a) sociodemographic variables (age, gender, refugee vs. non-refugee status); (b) protective factors (prosocial behavior, social-emotional assets, and school environment); (c) risk factors (emotional symptoms, conduct problems, hyperactivity/inattention, and peer relationship issues).

RESULTS

The overall bullying rate was 56.3 %, with verbal bullying being the most common. Significant predictors included younger age (Odds Ratio [OR] = 1.35, p < 0.01), male gender (OR = 1.48, p < 0.01), and a negative school environment (OR = 1.62, p < 0.01). Syrian refugee students were more likely to be victims (OR = 2.03, p < 0.01), while Lebanese students were more frequently identified as perpetrators (OR = 1.78, p < 0.01). Protective factors were associated with lower bullying rates, whereas risk factors such as conduct problems and peer relationship difficulties were linked to higher bullying involvement.

CONCLUSIONS

The study reveals a high prevalence of bullying and underscores the need for comprehensive anti-bullying strategies. Addressing both protective and risk factors is crucial for creating a safer, more inclusive educational environment for all students.

The Impact of Novel Medications for Obesity on Weight Stigma and Societal Attitudes: A Narrative Review

PURPOSE OF REVIEW

This narrative review examines the potential implications of the expanded use of novel medications for obesity, particularly the GLP-1 receptor agonists, on weight stigma and societal attitudes towards pharmacologically induced weight loss. It analyses how these medications may potentially contribute to both reducing and exacerbating stigma and discusses strategies to reduce weight bias.

RECENT FINDINGS

The introduction of GLP-1 receptor agonists has demonstrated effectiveness in reducing weight and lead to improved health outcomes for individuals living with obesity. However, while these medications may reduce stigma by framing obesity as a medical issue rather than a personal failure, disparities in access and use related to high costs may inflate existing biases against those who cannot afford treatment. Also, a few studies indicate that users of these medications may feel stigmatised for taking what is perceived as an "easy way out" to lose weight, mirroring historical attitudes towards bariatric surgery. The new medications for obesity may have the potential to reduce obesity stigma by reframing it as a medical condition rather than a moral failing. However, taking legal actions to build a more inclusive society including ensuring equitable access to these medications will be essential in mitigating stigma and help fostering a supportive environment for those living with obesity. Lessons from reducing stigma surrounding other medical conditions suggest that supportive health care and educational campaigns that promote the understanding of obesity as a complex health issue are needed to reshape negative perceptions towards individuals with obesity.

Bullying in adolescents across three years in the context of the COVID-19 pandemic: a repeated cross-sectional and prospective analysis

BACKGROUND

Bullying has been identified as a risk factor for many issues among adolescents. Although it was already considered a public health issue in Brazil before the COVID-19 pandemic, little is known about how the pandemic and associated public health measures have affected bullying behavior.

OBJECTIVE

To explore changes in bullying victimization and perpetration among Brazilian high school students from 2019 to 2022.

METHODS

This study utilizes data from the Longitudinal Study of Adolescent Lifestyle (ELEVA), employing a repeated cross-sectional with a nested cohort design. Adolescents (n = 1.987, 50.2% female, mean age 16.4 years) answered a questionnaire and bullying-related information were extracted from two different questions for victims and perpetrators. Multilevel logistic regression models were used.

RESULTS

Bullying victimization decreased from 46% (95% CI: 40-52%) in 2019 to 30% (95% CI: 24-36%) in 2022 (OR: 0.46, 95% CI: 0.30-0.69, p < 0.05) in the longitudinal sample. Stable prevalences of bullying victimization (44% in 2019, 40% in 2022, p = 0.090) and perpetration (9.7% in 2019. 8.7% in 2022, p = 0.5) were observed within the repeated cross-sectional sample.

CONCLUSION

This study found a significant decrease in bullying victimization among Brazilian high school students from 2019 to 2022 in the longitudinal sample, which coincides with the decrease in bullying behavior associated with getting older. However, the prevalence of bullying victimization and perpetration remained relatively stable and high in the repeated cross-sectional sample. These findings highlight the need for effective policies and interventions to prevent bullying among high school students. Additionally, providing resources and support for students experiencing bullying could be beneficial.

Psychological well-being and the reversal of childhood overweight and obesity in the UK: a longitudinal national cohort study

OBJECTIVE

This study aimed to examine the prospective association between psychological well-being and overweight and obesity reversal.

METHODS

We analyzed data of UK children with overweight or obesity at ages 11 (n = 4556, baseline), 14 (n = 3791, baseline), and 17 years (follow-up). Psychological well-being-related measures were characterized into indexes of caregiver-reported child mental health and child-reported psychosocial well-being, with a higher score indicating better mental health or psychosocial well-being. Weight changes were presented as reversal versus persistence of overweight or obesity and residualized-change BMI z scores. Data were analyzed using regression analysis.

RESULTS

Better child mental health and psychosocial well-being at age 11 years were independently associated with increased odds of reversal versus persistence (odds ratio [OR] = 1.16, 95% CI: 1.03 to 1.29; OR = 1.29, 95% CI: 1.15 to 1.44, respectively) and decreased BMI z scores (β = -0.08, 95% CI: -0.13 to -0.03; β = -0.07, 95% CI: -0.11 to -0.03, respectively) at age 17 years. However, neither of the indexes was associated with weight changes when measured at age 14 years. Analyses between psychological well-being-related measures and timing of measures indicated that psychological well-being-related measures were more likely to prospectively predict weight changes when measured at age 11 versus age 14 years.

CONCLUSIONS

Better psychological well-being at age 11 years is a prognostic factor that may be associated with an increased likelihood of reversing childhood overweight and obesity by age 17 years.

Factors Associated with Suicide Risk Behavior Outcomes Among Black High School Adolescents

There is an urgent need for youth suicide research, particularly among Black adolescents, for whom there have been significant increases over time. This study examines associations between eight covariates and suicide ideation, planning, and attempts among a national sample of Black high school adolescents to inform prevention efforts. Utilizing the 2019 National Youth Risk Behavior Survey data, a sample of N = 6225 Black high school participants was analyzed. A weighted classification tree and network analysis were used to visualize data features, and weighted multinomial ordered logistic regression analyses with multiple imputation pooled using Rubin's rules were performed. Suicide ideation rates of 16% were found in the sample and a higher reported rate of suicide attempts (56%) for those who have reported both ideation and planning. Interpersonal and multilevel factors, including suffering from bullying/cyberbullying, carrying a weapon, or being a sexual minority, were significantly associated with all three suicide behaviors. Findings support an interrelated and multilevel nature of suicide risk factors. Prevention programs for Black adolescents should consider the intersectionality of identities and experiences.

Screen time, social media use, and weight-related bullying victimization: Findings from an international sample of adolescents

Screen time, social media, and weight-related bullying are ubiquitous among adolescents. However, little research has been conducted among international samples. Therefore, the aim of this study was to determine the association between screen time, social media use, and weight-related bullying victimization among an international sample of adolescents from six countries. Data from the 2020 International Food Policy Study Youth Survey were analyzed (N = 12,031). Multiple modified Poisson regression models were estimated to determine the associations between weekday hours of five forms of screen time, and total screen time, and use of six contemporary social media platforms and weight-related bullying victimization. Analyses were conducted among the overall sample, and stratified by country (Australia, Canada, Chile, Mexico, United Kingdom, United States). Greater hours of weekday screen time and use of each of the six social media platforms were associated with weight-related bullying victimization among the sample. Each additional hour of social media use was equivalent to a 13% (confidence interval [CI] 1.10-1.16) increase in the prevalence of weight-related bullying victimization. The use of Twitter was associated with a 69% (CI 1.53-1.84) increase in the prevalence of weight-related bullying victimization. Associations between hours of weekday screen time, use of six social media, and weight-related bullying victimization differed by country. Findings underscore the associations between screen time, social media, and weight-related bullying among a sample of adolescents from six medium- and high-income countries. Country-specific and global public health and technology efforts are needed to address this burgeoning social problem.

Latent profiles of bullying perpetration and victimization: Gender differences and family variables

BACKGROUND

School bullying is a prevalent issue that threatens the psychological and social well-being of adolescents. However, little research has investigated how gender and family variables were related to bullying-involvement patterns among adolescents with siblings.

OBJECTIVE

This study explored gender differences in the profiles of bullying involvement and the relationship between sibling, parental variables, and these profiles among Chinese adolescents.

PARTICIPANTS AND SETTING

Participants (N = 1,060; 46.0 % boys; Mage = 15.53) were recruited from junior and senior high schools in Jiangxi and Guizhou Provinces, China.

METHODS

Bullying involvement, sibling warmth and conflict, and parental psychological maltreatment and neglect were assessed by self-report questionnaire. Latent profile analysis was used to identify subgroups with distinct bullying involvement patterns, then multiple logistic regressions were performed to investigate the associations between family variables and bullying-involvement subgroups.

RESULTS

We found gender differences in both the latent profiles of bullying involvement and the associations between profiles and family variables. Only boys were identified severe bully-victims (3.39 %), while only girls were categorized as relational bully-victims (20.18 %). Boys and girls were similarly represented among uninvolved students (70.76 % vs. 66.85 %), moderate bully-victims (15.25 % vs. 6.49 %), and victims (10.59 % vs. 6.49 %). Students with more sibling warmth manifested less likelihood of engaging in bullying-related profiles, with more parental psychological maltreatment, and more parental neglect manifested more likelihood of engaging in bullying-related profiles only among girls. While students with more sibling conflict were related to more bullying-related profiles among boys than girls.

CONCLUSIONS

The findings emphasize the importance of developing gender-specific bullying intervention strategies that also consider relevant family factors.

Evaluation of cardiovascular risk factors in children aged 6-16 years and their evolution in early adulthood in a 10-year follow-up study

OBJECTIVE

Obesity and arterial hypertension (AH) in children represent well-recognized risk factors for cardiovascular (CV) events during adult life. We investigated any changes regarding several CV risk (CVR) factors in children after a 10-year follow-up period.

METHODS

A cohort of 143 healthy children, elementary/high school students, 6-16 years old, was initially evaluated in 2010-2011 regarding CVR factors [obesity, blood pressure (BP), aortic stiffness (PWV), lipid profile] plus food habits/sports activity. At 10-years follow-up (2020-2021), 63/143 (44%) young adults were re-evaluated.

RESULTS

Children with obesity (45%) had increased BP (p < 0.001) and a less favorable LDL-C/triglycerides profile (p = 0.001) compared to overweight/normoweight ones. In a 10-year follow-up, obesity and exercise improved (p < 0.001 and p = 0.005), systolic BP (SBP) (102 ± 13 vs. 118 ± 11 mmHg, p < 0.001) and PWV increased (6.1 ± 1 vs. 7.7 ± 1.1 m/sec, p < 0.001), LDL-C (96 ± 21 vs. 86 ± 24 mg/dl, p = 0.004) and HDL-C + (64 ± 18 vs. 55 ± 10 mg/dl, p < 0.001) decreased, triglycerides increased (62 ± 21 vs. 73 ± 34 mg/dl, p = 0.04), and food approached the western model of nutrition (less fish/fruits). In children/young adults, BMI was associated with age (Beta = 0.47, p < 0.001 and Beta = 0.36, p = 0.004), SBP (Beta = 0.46 and Beta = 0.52, p < 0.001), and LDL-C (Beta = 0.27 and Beta = 0.44, p < 0.001).

CONCLUSIONS

In children with obesity, increased BMI and waist circumference were related to SBP and a less favorable lipid profile. At the 10-year re-evaluation, obesity was partially improved, physical activity was increased, and SBP had reached the high-normal levels in a substantial number of young adults, while lipid profile was less favorable (for HDL-C/triglycerides) compared to baseline evaluation. Our results highlight the evolution of CVR factors from childhood to early adulthood.

[Bullying victimization and associated factors among schoolchildren in a city in the south of Brazil]

The objective was to assess the prevalence of bullying victimization and associated factors among adolescents in the city of Pelotas, Rio Grande do Sul. A cross-sectional school-based study was conducted with 795 ninth grade students from 25 urban municipal schools linked to the School Health Program. Bullying was assessed using questions that addressed the occurrence, frequency, location, type of violence suffered and how much it bothers the victims. Gross and adjusted analyses were performed by Poisson regression. Approximately 71% of the students reported having suffered bullying, and school was the location of greatest occurrence (86.7%). Among the types of aggression suffered, "nicknames" was the most recurrent complaint (88.4%), followed by exclusion or isolation (26.6%). Victimization was more frequent among girls (PR 1.13; 95%CI 1.02-1.27), students with non-white skin color/race (PR 1.16; 95%CI 1.05-1.29), who have already tried tobacco (PR 1.14; 95%CI 1.03-1.27), dissatisfied (PR 1.42; 95%CI 1.27-1.58) or indifferent (PR 1.21; 95%CI 1.02-1.43) about their bodies, and who were overweight (PR 1.15; 95%CI 1.04-1.27). The results show that bullying is a frequent practice in the school environment, pointing to the need for educational practices aimed at reducing and preventing this type of violence.

Parenting Styles and Psychosocial Factors of Mother-Child Dyads Participating in the ENDORSE Digital Weight Management Program for Children and Adolescents during the COVID-19 Pandemic

Childhood obesity is a complex disease with multiple biological and psychosocial risk factors. Recently, novel digital programs were developed with growing evidence for their effectiveness in pediatric weight management studies. The ENDORSE platform consists of mobile applications, wearables, and serious games for the remote management of childhood obesity. The pilot studies included 50 mothers and their children aged 6-14 years and resulted in a clinically significant BMI z-score reduction over 4 to 5 months. This secondary analysis of the ENDORSE study focuses on parenting styles and psychosocial factors.

METHODOLOGY

Semi-structured clinical interviews were conducted with all participating mothers pre-and post-intervention. The Parenting Styles and Dimensions Questionnaire (PSDQ) evaluated the mothers' parenting styles. The psychosocial functioning of the participating children was assessed with the parental version of the Strengths and Difficulties Questionnaire (SDQ). The relationship between parenting styles, psychosocial parameters, and weight outcomes was investigated using a linear regression analysis.

RESULTS

Weight-related stigma at school (56%), body image concerns (66%), and difficulties in family relationships (48%) were the main concerns documented during the initial psychological interviews. According to the SDQ, there was a significant decrease in children's conduct problems during the study's initial phase (pre-pilot group). A decrease in maternal demandingness (i.e., strict parenting style) was associated with a decrease in BMI z-score (beta coefficient = 0.314, p-value = 0.003).

CONCLUSION

Decreasing parental demandingness was associated with better weight outcomes, highlighting the importance of assessing parenting factors in pediatric weight management programs.

School bullying and self-efficacy in adolescence: A meta-analysis

INTRODUCTION

Given that literature has examined the relation between school bullying and self-efficacy, findings have been mixed. This meta-analysis aimed to clarify whether school bullying is associated with adolescents' self-efficacy, a key component of social information processing essential for the evaluation of potential behavioral responses. We further examined moderators associated with heterogeneity in the above relation, including participant roles, types of school bullying, types of self-efficacy, and demographic factors (e.g., age, gender, and cultural background).

METHOD

This study followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses Statement for searching, identifying, and screening eligible articles. A total of 53 articles (N = 71,661; Mage  = 12.69 years) were included (50 in English and 3 in Chinese). Articles were coded by two graduate-level coders independently with a high inter-rater reliability (97.12%).

RESULTS

The results showed that (1) school bullying was negatively associated with self-efficacy (r = -.07, p < .001) among adolescents, and (2) the above relation varied by participant role (e.g., bullies, victims, bully-victims, and defenders), types of school bullying (e.g., traditional bullying, cyberbullying, and both), and types of self-efficacy (e.g., general and domain-specific self-efficacy).

FINDINGS

The findings highlight that school bullying is associated with disruptive cognitive processing in adolescence, low self-efficacy in particular, and the heterogeneity should be considered to fully understand the association between school bullying and self-efficacy among adolescents.

The psychological legacy of past obesity and early mortality: evidence from two longitudinal studies

BACKGROUND

We test a novel 'weight scarring' hypothesis which suggests that past obesity is associated with impairments in current psychological well-being and this increases risk of negative physical health outcomes associated with obesity. Across two nationally representative studies, we tested whether past obesity is associated with current psychological outcomes and whether these psychological outcomes explain the association between past obesity and subsequent early mortality.

METHODS

Data were from the National Health and Nutrition Examination Survey (NHANES) (n = 29,047) and the Health and Retirement Study (HRS) (n = 11,998). Past obesity was defined based on maximum lifetime weight in NHANES and the highest weight from past study waves in the HRS. Across both studies, current depressive symptoms were analysed. A set of 10 additional well-being measures were combined to produce an 'index of impaired well-being' in HRS. Subsequent all-cause mortality was examined using National Deaths Index records in NHANES and household interviews in HRS. Linear or logistic regression, Cox proportional hazard regression, and causal mediation models were used.

RESULTS

We found that past obesity was associated with greater current depressive symptoms after controlling for current weight status and in analyses limited to those who were no longer classified as having obesity in NHANES (β = 0.17; 95% CI: 0.13, 0.22) and HRS (β = 0.20; 95% CI: 0.08, 0.31). In HRS, past obesity was also associated with a range of current negative psychological outcomes, including an index of impaired psychological well-being (β = 0.16; 95% CI: 0.05, 0.27). Past obesity was associated with a higher risk of early mortality in both NHANES and HRS (HR = 1.31; 95% CI: 1.16, 1.48 and HR = 1.34; 95% CI: 1.20, 1.50, respectively). Depressive symptoms explained 6% (95% CI: 0.01, 0.10) and 5% (95% CI: 0.01, 0.09) of the association between past obesity and premature mortality in NHANES and HRS, respectively. Impaired psychological well-being partly mediated the association between past obesity and premature mortality by 10% (95% CI: 0.04, 0.16) in HRS.

CONCLUSIONS

Our findings suggest that there may be a psychological legacy of past obesity that is associated with raised mortality risk. Ensuring people with obesity receive psychological support even after experiencing weight loss may be important.

The impact of bullying in childhood and adolescence

PURPOSE OF REVIEW

Bullying is a common adversity affecting many children and adolescents. It has been shown to negatively impact the psychological well being not only of targets of bullying, but also that of bullying perpetrators and those witnessing bullying. Bullying is linked to depression and poorer mental health and functioning among children and adolescents. Given the high prevalence of bullying among children and adolescents and the negative mental health sequelae of bullying, this is an area of urgent public health concern. This narrative review brings forth recent research findings in this arena, which could help shape public health policies for addressing and preventing bullying.

RECENT FINDINGS

Recent findings demonstrate an association of bullying among children and adolescents with depression, nonsuicidal self-injury, sleep loss, reduced health-related quality of life, poorer rates of graduation from high school and later mental health problems. A recent systematic review also showed an association of peer-victimization among children and adolescents with activation of amygdala, left parahippocampal gyrus and fusiform gyrus, and alterations in other brain areas.

SUMMARY

Evidence indicates that bullying in childhood and adolescence is associated with higher odds of developing mental health problems; therefore, early identification and timely intervention is crucial.