Chilean Adolescents Research Articles

A gender study of the social representations of dating violence in Chilean adolescents.

The experiences and viewpoints of adolescents as regards dating violence in southern countries remain poorly documented. It is thus difficult to have an overall understanding of the phenomenon. Based on social representation theory, this paper attempts to fill this gap by answering the question: What is dating violence for Chilean adolescents? Knowing what adolescents consider to be dating violence and the contextual elements that influence their perceptions is essential to developing effective prevention strategies. This is particularly important as prevention policies are currently non-existent in Chile, despite the fact that adolescents living there must deal with many risk factors. In this context, a qualitative multi-methodological study (free association and focus groups) was conducted with 142 Chilean adolescents from public and private schools. This study showed that the explanations of dating violence given by boys and girls were influenced by gender and a context of ambivalent sexism. It also took place in a changing socio-cultural Chilean context. Dating violence used by boys was driven by machismo and its exercise by girls was perceived to come from cultural changes concerning women’s rights. In addition, the physical nature of dating violence was deeply entrenched in the study participants’ social representations, the figurative image being hits. Based on these results, we recommend that future research and prevention strategies should consider the sociocultural context and gender as aspects likely to influence both the adolescents’ social representations of dating violence and their behaviors. Supplementary InformationThe online version contains supplementary material available at 10.1007/s43545-022-00407-7.

Polyvictimization and Depressive Symptomatology in Adolescents: Evaluation of the Role of School Social Climate

Abstract The purpose of the current study is to examine the relationship between polyvictimization, school social climate, and depression in adolescents. Authors also looked at whether school social climate acts as a moderator of the interaction between polyvictimization and depressive symptoms. Furthermore, to have a deeper analysis, they included—as control variables—factors that have been shown in previous research to have an impact on depression, including age, gender discrimination, family support, and mood control. In total, 411 Chilean adolescents participated in the study from public (72.2 percent), semiprivate (17.4 percent), and private schools (10.4 percent). Four paper-based instruments were used to measure school social climate, depression, family support, and polyvictimization, and additional information was solicited with a sociodemographic data questionnaire. Regression analysis showed that both polyvictimization (β = .10, p = .03) and school social climate (β = –.10, p = .03) were predictors of depressive symptomatology. However, the interaction between polyvictimization and school social climate was not significant (β = .07, p = .73).

Addressing the Need for Better Measures of Positive Health.

Addressing the Need for Better Measures of Positive Health.

The role of family support and conflict in cyberbullying and subjective well-being among Chilean adolescents during the Covid-19 period

IntroductionLife satisfaction plays a crucial role in integral development and mental health during childhood and adolescence. Recently, it has been shown that cyberbullying has severe consequences for the mental health and wellbeing of victims such as increased anxiety, depressive symptoms and even suicide risk. Although the role of the family in life satisfaction and cyberbullying behaviors has been studied, there is limited information on its impacts during the current pandemic period. ObjectiveThe aim of this study is to determine the role of family variables regarding students’ levels of life satisfaction and cyberbullying victimization during the pandemic period. MethodStructural equation modeling was done using data from a cross-sectional study (n = 287; age ranged 14–18) conducted in six schools in Santiago, Chile during 2020. ResultsThe tested model has a good fit and parsimonious adjustment. It explained 25.9% of the life satisfaction and 9% of the variance of cyberbullying victimization. Family support was positively associated with life satisfaction (p < 0.001) and negatively associated with cyberbullying victimization (p < 0.05). Likewise, family conflict was positively associated with levels of cyberbullying victimization (p < 0.05) and negatively associated with life satisfaction levels (p < 0.001). Finally, family visits were only positively associated with life satisfaction (p < 0.01). ConclusionsGenerating interventions on several levels focused on positive family bonds has become essential and urgent. This is especially important considering their protective impacts on cyberbullying victimization in promotion of adolescent well-being and quality of life.

Modificación de estilos de vida de adolescentes chilenos durante el primer confinamiento por COVID-19

Confinement is an effective measure to control COVID-19, but it can have repercussions on lifestyle-related behaviors, especially among adolescents. Poor quality diet and low physical activity could trigger weight gain and the appearance of chronic non-communicable diseases at an early age. To investigate the changes in eating and physical activity patterns before and during the first COVID-19 confinement in Chilean adolescents. Chilean adolescents aged between 10 and 19 years were invited to answer an online survey with 47 questions about dietary habits and physical activity. The survey was answered by 420 participants and only four adolescents declined to answer it. Changes in eating patterns were evidenced, such as an increase in lunch consumption from 54.1 to 83%, and a decrease in the consumption of both healthy and unhealthy foods. Also, significant changes were observed in physical activity patterns, and an increase in the time spent sitting, from 4.7 to 5.8 hours during confinement. The first confinement for COVID-19 modified eating and physical activity patterns in Chilean adolescents towards unhealthy habits, which if maintained, could negatively affect their health and quality of life.

Strengths and challenges of a school-based sexual and reproductive health program for adolescents in Chile.

BackgroundAdolescent sexual and reproductive health services in Chile have been primarily provided through health centers. Although some school-based initiatives have been implemented, to date, these have not been assessed. This study aims to identify strengths and challenges of the affectivity and sexuality component of the school-based 3A Program, a health program which seeks to prevent risk behaviors and promote healthy lifestyle habits within public schools (addressing health topics which in Spanish begin with the letter ‘A’, hence ‘3A’), implemented in the municipality of Lo Prado, city of Santiago.MethodsWe carried out a qualitative study with a descriptive-interpretative approach in three schools. We conducted in-depth interviews with students, teachers, health professionals, and school principals (N = 44); and focus groups with students (N = 3), teachers and health personnel (N = 3). The interviews were analyzed using thematic analysis.ResultsParticipants highlight the integrative approach to health and to sexual and reproductive health promoted in the 3A Program, which is enhanced by the collaboration of interdisciplinary health teams. Permanent and expedited student access to sexual and reproductive health care is achieved, and affectional bonds are developed between students and the Program’s health staff. The Program assists female participants to imagine and form identities that are not inherently tied to motherhood. It also assists boys and LGBTQ+ adolescents in feeling included as relevant actors in sexual and reproductive health and decision making. The delivery of contraception in schools is highly valued. The most significant challenge identified is ensuring effective and ongoing collaboration between health staff and teachers.ConclusionParticipants value the effectivity and sexuality component of the 3A Program as an initiative to improve adolescents’ access to sexual and reproductive health care. Our findings suggest that this Program could be replicated throughout the region and the country to improve the quality and accessibility of health services for adolescents.

Association of fasting Orexin-A levels with energy intake at breakfast and subsequent snack in Chilean adolescents

Orexin-A, a hormone secreted by orexin neurons, is involved in caloric-intake regulation. Current understanding is based primarily on animal studies. Studies of orexin in humans are scarce, and to our knowledge there are no prior studies in adolescents. We studied fasting Orexin-A levels related to energy intake at breakfast and a subsequent snack in adolescents (n = 668) from a longitudinal study in Chile. Body-Mass Index (BMI), components of the metabolic syndrome and fasting blood levels of leptin, insulin, ghrelin, and orexin-A were measured. Energy intake was calculated based on food weights before and after the standardized breakfast and subsequent snack. High energy intake was defined as ≥ 75th percentile. We assessed the relationship between orexin-A and high energy intake, adjusting for confounders. Higher orexin levels were associated with high breakfast energy intake (OR: 1.21; 95%CI: 0.98–1.49). Conversely, those with higher orexin levels showed a non-significant trend for lower odds of high energy intake for the snack (OR: 0.87; 95%CI: 0.70–1.07). There was a significant interaction between high breakfast energy intake and orexin levels. Those who ate more calories at breakfast displayed a lower inhibitory effect of orexin on eating at the snack (p < 0.05). There was no significant interaction between weight status and orexin. In conclusion, orexin-A levels were associated with breakfast energy intake and inversely related with subsequent snack energy intake in participants whose caloric intake at breakfast was within the normal range. Based on these findings, it appears that the association of orexin-A with energy intake depends on eating behavior.

Psychometric Properties of the Eating Disorder Inventory-3 (EDI-3) in Chilean Youth.

The aim of this study was to analyze the psychometric properties of the Eating Disorder Inventory (EDI)-3 test to evaluate eating disorders in young Chilean population. Methods: The sample consisted of 1,091 Chilean adolescents and young people (i.e., 476 men and 615 women) between 15 and 28 years old, from the metropolitan region, and four regions from the coast and south-central zone of the country. The reliability and factorial structure of the instrument were analyzed, replicating the confirmatory factor analyses of Brookings et al. (2020), evaluating four additional models that included bifactor exploratory structural equation modeling (ESEM), bifactor, and two-bifactor. Results: A majority of the subscales presented alphas and omegas equal to or greater than 0.70, with the exception of asceticism (α = 0.543, ω = 0.552) and interpersonal alienation (α = 0.684, ω = 0.695) scales, which are consistent with the values of the Spanish and Mexican non-clinical samples. The best fit indices were obtained by the ESEM two-bifactor model, with twelve specific factors corresponding to the EDI-3 subscales and two general orthogonal factors (i.e., risk subscales and psychological subscales), consistently with the theoretical basis.

Misreporting of Energy Intake Is Related to Specific Food Items in Low-Middle Income Chilean Adolescents.

Background: Misreporting of energy intake (EI) in self-reported dietary assessment is inevitable, and even less is known about which food items are misreported by low-middle income adolescents. We evaluated the prevalence of misreporting of energy intake and its relationship with nutrients and food intake. Methods: We analyzed 24 h dietary recalls collected from 576 adolescents (52.08% boys) from southeastern Santiago. Anthropometrics measurements and information about sociodemographic characteristics were obtained during clinical visits. The method proposed by McCrory et al. was used to identify under-reporters (UnRs), over-reporters (OvRs), or plausible reporters (PRs). Food items were collapsed into 28 categories and every food item was expressed as a percentage of total EI. Logistic regression models were performed to investigate the factors associated with misreporting, and a two-part model was used to estimate the difference in the percentage of EI between UnRs versus PRs, and OvRs versus PRs in each food item. Results: Half of the participants were classified as UnRs and 9% were OvRs. UnR was higher among boys (62%) and adolescents with overweight and obesity (72%). OvR was higher among adolescents with normal weight. UnRs had a lower intake of energy from cookies/cake, chocolate/confectionery, and a higher intake of vegetables and eggs than PRs. OvRs had a higher intake of cookies/cake, chocolate/confectionery, and a lower intake of fruit, white milk, and yogurt than PRs. Conclusions: A high frequency of UnR among boys and participants with excess weight was found in this study. Healthy and unhealthy foods are reported differently between UnRs and OvRs of energy intake, indicating that bias is specific for some food items that adolescents commonly eat.

Association of fasting orexin-A levels with energy intake at breakfast and subsequent snack in Chilean adolescents

Orexin-A, a hormone secreted by orexin neurons, is involved in caloric-intake regulation. Current understanding is based primarily on animal studies. Studies of orexin in humans are scarce, and to our knowledge there are no prior studies in adolescents. We studied fasting Orexin-A levels related to energy intake at breakfast and a subsequent snack in adolescents (n = 668) from a longitudinal study in Chile. Body-Mass Index (BMI), components of the metabolic syndrome and fasting blood levels of leptin, insulin, ghrelin, and orexin-A were measured. Energy intake was calculated based on food weights before and after the standardized breakfast and subsequent snack. High energy intake was defined as ≥ 75th percentile. We assessed the relationship between orexin-A and high energy intake, adjusting for confounders. Higher orexin levels were associated with high breakfast energy intake (OR: 1.21; 95%CI: 0.98–1.49). Conversely, those with higher orexin levels showed a non-significant trend for lower odds of high energy intake for the snack (OR: 0.87; 95%CI: 0.70–1.07). There was a significant interaction between high breakfast energy intake and orexin levels. Those who ate more calories at breakfast displayed a lower inhibitory effect of orexin on eating at the snack (p < 0.05). There was no significant interaction between weight status and orexin. In conclusion, orexin-A levels were associated with breakfast energy intake and inversely related with subsequent snack energy intake in participants whose caloric intake at breakfast was within the normal range. Based on these findings, it appears that the association of orexin-A with energy intake depends on eating behavior.

Relationship among Materialism, Attitudes Regarding Money, Peer Influence and Satisfaction with Life in Chilean Adolescents

Materialism has been recognized as an important variable in postmodern societies; however, most of the studies on this concept have focused on the adult population. The aim of the present study is to determine the possible association between materialism and life satisfaction, and the possible mediating role of attitudes towards money and peer influence in this association, in a sample of Chilean adolescents. A sample of 1325 Chilean secondary school students completed a questionnaire measuring materialism, attitudes in regards with money, susceptibility to peer influence, and satisfaction with life. First, a confirmatory factor analysis was conducted to validate the scalers. Secondly, a theoretical model was tested using Hayes (2013) SPSS macro, PROCESS. The theoretical model included materialism as the predictor variable, satisfaction with life as the predicted variable, and attitudes towards money and susceptibility to peer influence as mediator variables. Results indicate that materialistic attitudes regarding money strengthens a negative relation between materialism and satisfaction with life. This tendency is not observed in susceptibility to peer influence despite being positively associated with materialism and attitudes regarding money. These findings suggest that the variables materialism and attitudes regarding money play a relevant role in the life satisfaction of Chilean adolescents.

Fasting levels of appetite regulating hormones predict caloric intake at breakfast in a group of Chilean adolescents.

Appetite regulation is integral to food intake and is modulated by complex interactions between internal and external stimuli. Hormonal mechanisms which stimulate or inhibit intake have been characterized, but the physiologic effects of serum levels of such hormones in short-term appetite regulation have received little attention. To evaluate whether fasting levels of orexigenic/anorexigenic hormones were associated with energy intake at breakfast, served soon after drawing a fasting blood sample, in a group of adolescents. Anthropometry, body composition and fasting blood levels of leptin, insulin, ghrelin, and orexin-A were measured in 655 Chilean adolescents aged 16.8 ± 0.3 years (52% males). Energy intake was measured at a semi-standardized breakfast. Associations between hormone levels and energy intake were studied using multivariate linear models. Thirty nine percent of participants were overweight/ obese. After an overnight fast, median values for leptin, insulin, ghrelin and orexin-A were 7.3 ng/mL, 6.7 IU/dL, 200.8 pg/mL, and 16.1 pg/mL, respectively. Participants ate on average 637 ± 239 calories at breakfast. In multivariable models, insulin levels were inversely and independently associated with caloric intake at breakfast (β = -18.65; p < 0.05), whereas leptin, ghrelin and orexin-A levels were positively and independently associated with intake: β= 5.56, β = 0.34 and β = 8.40, respectively, p < 0.05. Fasting leptin, ghrelin and orexin-A were positively associated with energy intake during breakfast provided soon after the blood draw. Insulin was negatively associated with energy intake. Modifiable factors influencing levels of appetite regulating hormones could be a potential target for influencing food intake.

Empirical Determination of Transitory and Persistent Delinquency in Chilean Youth: Validation of the Criminal Engagement Severity Scale "EGED".

Evidence from several longitudinal studies has established the relevance of the approach of evolutionary criminology to understanding and intervening with adolescent criminal offenders, seeking to halt the criminal behavior before its potential consolidation in adulthood. The aim of this study is to present the psychometric properties of the Criminal Engagement Severity Scale (EGED) to discriminate between transitory and persistent delinquency in Chilean adolescents of both sexes. The characteristics of the sample are revealed through descriptive analyses, and evidence of validity and reliability is provided that show its discriminant capacity using ROC curves and odds ratios, measures of internal consistency (Cronbach’s α and McDonald’s Ω), intraclass correlation, and unidimensional statistics. The results indicate that the EGED adequately discriminates between transitory and persistent delinquency, so that its use in contexts of assessment and intervention with adolescent criminal offenders can be recommended, because it helps to determine the intensity of the intervention required.

Gender attitudes, school violence and well-being among Chilean adolescents

Gender attitudes, school violence and well-being among Chilean adolescents

Adjusting Ferritin Concentrations for Nonclinical Inflammation in Adolescents with Overweight or Obesity

To compare approaches for adjusting serum ferritinconcentrations for inflammation in Chilean adolescents with overweight and obesity. Cross-sectional data from 518 adolescents (aged 16-17years; 48% females) from Santiago, Chile were analyzed. Several approaches were compared for estimating the prevalence of depleted iron stores (defined as serum ferritin <15μg/L), including unadjusted prevalence and higher cutoffs for various subgroups (excluding participants with inflammation), correction factors, and regression corrections. A "reference" prevalence estimate was calculated as the prevalence of serum ferritin <15μg/L in normal weightindividuals without inflammation. Each adjustment approach was compared with this reference prevalence. The sample comprised 61.2% normal weight, 23.7% overweight, and 15.1% obese individuals. The prevalence of inflammation (marked by C-reactive protein level >5.0mg/L) was 6.3%, 8.1%, and 14.1% in the 3 groups, respectively. The correction factor approaches produced adjusted estimates closest to the reference estimate (24.1%-24.7% vs 22.9%), followed by the regression corrections (24.7%-25.1% vs 22.9%). Applying a higher serum ferritin cutoff (30μg/L) to all participants or to participants with overweight/obesity produced adjusted estimates farthest from the reference (59.5% and 35.3%, respectively). Adjusting serum ferritin concentration may be necessary when assessing iron status in populations with high rates of overweight/obesity. After reviewing 6 approaches for adjusting for the influence of inflammation, this study suggests that using correction factors may be the most appropriate approach for adjusting serum ferritin in Chilean adolescents. Further research is needed to determine the optimal approach for adjusting serum ferritin concentrations for weight-related inflammation in broader populations.

Points of View of Chilean Adolescents about Asking for Help and Suggestions to Prevent Dating Violence Based on an Ecological Systems Theory

While several programs have been developed to prevent dating violence, few have been evaluated. Likewise, few studies have documented adolescents’ viewpoints on how prevention should be done. The current qualitative study seeks to strategically fill a gap in knowledge regarding the points of view of Chilean adolescents about the strategies that are best suited to prevent this problem and what is relevant content for prevention programs. This paper is part of a broader study on adolescents’ social representations of dating violence. The study’s aim was to explore Chilean adolescents’ points of view about asking for help and their suggestions about how to prevent dating violence. The sample included 48 Chilean adolescents, 26 girls (54.1%) and 22 boys (45.8%) between 14 and 18 years old, recruited from public and private schools, who were interviewed with a focus group method. The study consisted of two phases; the results of the second phase are discussed in this manuscript. The results are useful for the development of an appropriate socio-political response to this social and public health problem. Participants identified friends and parents as more common sources from whom to seek help than teachers and health professionals. The severity of dating violence and ensuing injuries are the main reasons for asking for help. In addition, gender is considered a central prevention issue in a changing Chilean cultural context. According to the ecological systems theory, prevention strategies based on the environment of adolescents at multiple levels (individual, interpersonal, community, and social) and in multiple components have been recommended.

Iron supplementation given to nonanemic infants: neurocognitive functioning at 16 years

ABSTRACT Objective There is concern that high iron uptake during the critical period of early brain development carries potential risks, especially for nonanemic infants. This study examined the neurocognitive functioning of 16-year-olds who were nonanemic as infants and received iron supplementation. Methods We studied 562 Chilean adolescents (M 16.2 years; 52.7% female) who participated in a randomized controlled iron supplementation trial in infancy. Between 6 and 12 months, 346 consumed an iron-fortified formula (12.7 Fe mg/L) or, if primarily breastfed, liquid vitamins with 15 mg elemental iron as ferrous sulfate, and 216 consumed unmodified cow milk without iron or liquid vitamins without iron if primarily breastfed. Results Compared to adolescents in the no-added iron condition in infancy, those in the iron-supplemented condition had poorer visual-motor integration, quantitative reasoning skills, and incurred more errors on neurocognitive tasks. Consuming larger amounts of iron-fortified formula in infancy was associated with lower arithmetic achievement. Of adolescents who had high hemoglobin at 6 months (Hb ≥ 125 g/L), those in the iron supplemented condition had poorer performance on arithmetic, quantitative reasoning, and response inhibition tests than those in the no-added iron condition. Of adolescents who had marginally low 6-month hemoglobin (Hb > 100 and < 110 g/L), those who received no-added iron incurred more errors on a visual searching task than those in the iron-supplemented condition. Conclusion The physiologic need for iron during the period of rapid and critical brain development in young infants should be considered vis-à-vis the risks associated with supplementing nonanemic infants with high levels of iron. Clinical Trials number: NCT01166451

Use of Technology and Its Association With Academic Performance and Life Satisfaction Among Children and Adolescents.

Introduction: In the last years, there has been a rise in the use of technology among children and adolescents, which has led to a greater concern about its impact on their socioemotional and cognitive development.Aims: To explore the time spent using technology, the risk perception of its use by students, and the association between frequency of technology use and life satisfaction and academic performance among children and adolescents in Chile. Additionally, we explored the mediating effect of sleep deprivation on these outcomes.Methods: This is a cross-sectional study, where 2,440 students (9-12 years old) from 13 schools participated. Data was collected using an online survey answered by students during school hours. The association analyses were performed using multivariable regression models considering life satisfaction and academic performance as dependent variables. Additionally, mediating analyses were conducted using structural equation modeling.Results: Time watching television and using cellphones were similar on weekdays, and playing video games was the most frequent activity during weekends. A 42.1% of students reported playing online video games with strangers, and 12.7% had sleep deprivation. Lower self-reported academic performance was associated with cyberbullying victimization, sleep deprivation, being hacked, exposure to violent content, time spent using cell phones during weekdays and weekends, and playing video games during weekdays. Students who perceived that playing video games after 9 pm affected their sleep had a higher academic performance. There was a clear mediating effect of sleep deprivation in the relationship between time spent using a cellphone during weekdays and weekends and playing video games during weekdays and GPA.Conclusions: Time spent using technological devices was not associated with life satisfaction; however, the time spent using cell phones and playing video games was related to lower self-reported academic performance, mediated by sleep deprivation. Future research may focus on a better understanding of the mechanisms involved in the effect of technology use on sleep routines among adolescents and potential interventions to reduce its impact on academic performance.

Anxiety, Low Self-Esteem and a Low Happiness Index Are Associated with Poor School Performance in Chilean Adolescents: A Cross-Sectional Analysis.

Objective: To analyze the relationship between anxiety, self-esteem, happiness index and primary school students’ academic performance in Chilean adolescents from the Biobío province. Methodology: 733 (46.1% girls; 12 (1.3 years)) public primary school students that completed the 2018 Health and School Performance Survey carried out in the Biobío province were included in this cross-sectional analysis. The BECK Anxiety Inventory (BAI) was used to measure anxiety while happiness index and self-esteem were measured using the subjective happiness scale and the Rosenberg self-esteem scale, respectively. School performance was measured by grade point average (GPA) of language, math, physical education and cumulative GPA, and behavior associated with cognition in the school context was also considered. The relationship between mental health indicators and school performance was investigated using a one-way ANOVA and Pearson correlation. Results: In comparison to students with low anxiety levels and high self-esteem and happiness levels, students with higher anxiety levels, lower self-esteem and happiness levels perceived themselves as having memory problems. They were also slower to solve math problems, had a shorter attention span in class and presented more difficulties in solving complex tasks, as well as being more nervous during testing. These students also got the lowest grade point average in math, language and physical education. Conclusions: High anxiety levels, low self-esteem and low happiness levels were associated with lower school performance and weaker behavior associated with cognition in Chilean adolescents. Implementing plans of emotional education and mental health could improve academic achievement.

Life Satisfaction, Bullying, and Feeling Safe as a Protective Factor for Chilean and Brasilian Adolescents

Life Satisfaction, Bullying, and Feeling Safe as a Protective Factor for Chilean and Brasilian Adolescents