Browsing by Subject "Bullying"

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    Cardiometabolic Risk Factors among Severely Obese Children and Adolescents in the United States, 1999-2012.
    (Childhood obesity (Print), 2016-02) Li, Linlin; Pérez, Adriana; Wu, Li-Tzy; Ranjit, Nalini; Brown, Henry S; Kelder, Steven H

    Background

    Severely obese children and adolescents are at high risk of suffering obesity-related comorbidities. This article is to examine the dose-response relationship between weight status and cardiometabolic risk factors among US adolescents.

    Methods

    Youths aged 6-19 years participating in the National Health and Nutrition Examination Surveys (NHANES) 1999-2012 were included (N = 20,905). Severe obesity was defined as BMI ≥120% of 95th percentile of gender-specific BMI-for-age or BMI ≥35 kg/m(2). Obesity-related cardiometabolic risk factors included blood pressure (BP), high-density lipoprotein cholesterol (HDL), low-density lipoprotein cholesterol (LDL), total cholesterol (TC), triglycerides, and fasting glucose (FG). Weighted multiple logistic regression was used to assess whether severe obesity significantly changed the odds of having cardiometabolic risk factors.

    Results

    The prevalence of high BP, high TC, low HDL, high triglycerides, high LDL, and high FG among severely obese adolescents was 9.9%, 16.5%, 40.0%, 30.0%, 13.0%, and 26.8%, respectively. Severely obese adolescents had at least twice the odds compared to normal weight adolescents of presenting high BP (OR = 5.3, 95% CI: 3.8-7.3); high TC (OR = 2.3, 95% CI: 1.8-3.0); low HDL (OR = 7.3, 95% CI: 6.1-8.8); high triglycerides (OR = 4.5, 95% CI: 3.4-5.9); high LDL (OR = 2.3, 95% CI: 1.5-3.5); and high FG (OR = 2.7, 95% CI: 1.8-4.0). Significant differences were also found between severely obese status and moderately obese status in the odds of having high BP (OR = 1.8, 95% CI: 1.7-2.2) and low HDL (OR = 1.9, 95% CI: 1.6-2.3).

    Conclusion

    Adolescents classified as severe status exhibit higher odds of having cardiometabolic risk factors compared to those with normal weight and moderately obese weight status.
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    Childhood bullying involvement predicts low-grade systemic inflammation into adulthood.
    (Proc Natl Acad Sci U S A, 2014-05-27) Copeland, WE; Wolke, D; Lereya, ST; Shanahan, L; Worthman, C; Costello, EJ
    Bullying is a common childhood experience that involves repeated mistreatment to improve or maintain one's status. Victims display long-term social, psychological, and health consequences, whereas bullies display minimal ill effects. The aim of this study is to test how this adverse social experience is biologically embedded to affect short- or long-term levels of C-reactive protein (CRP), a marker of low-grade systemic inflammation. The prospective population-based Great Smoky Mountains Study (n = 1,420), with up to nine waves of data per subject, was used, covering childhood/adolescence (ages 9-16) and young adulthood (ages 19 and 21). Structured interviews were used to assess bullying involvement and relevant covariates at all childhood/adolescent observations. Blood spots were collected at each observation and assayed for CRP levels. During childhood and adolescence, the number of waves at which the child was bullied predicted increasing levels of CRP. Although CRP levels rose for all participants from childhood into adulthood, being bullied predicted greater increases in CRP levels, whereas bullying others predicted lower increases in CRP compared with those uninvolved in bullying. This pattern was robust, controlling for body mass index, substance use, physical and mental health status, and exposures to other childhood psychosocial adversities. A child's role in bullying may serve as either a risk or a protective factor for adult low-grade inflammation, independent of other factors. Inflammation is a physiological response that mediates the effects of both social adversity and dominance on decreases in health.
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    Peer Victimization during Middle Childhood as a Marker of Attenuated Risk for Adult Arrest.
    (J Abnorm Child Psychol, 2017-11-16) Schwartz, David; Lansford, Jennifer E; Dodge, Kenneth A; Pettit, Gregory S; Bates, John E
    This longitudinal investigation examined interactions between aggression and peer victimization during middle childhood in the prediction of arrest through the adult years for 388 (198 boys, 190 girls) study participants. As part of an ongoing multisite study (i.e., Child Development Project), peer victimization and aggression were assessed via a peer nomination inventory in middle childhood, and juvenile and adult arrest histories were assessed via a self-report questionnaire as well as review of court records. Early aggression was linked to later arrest but only for those youths who were rarely victimized by peers. Although past investigators have viewed youths who are both aggressive and victimized as a high-risk subgroup, our findings suggest that the psychological and behavioral attributes of these children may mitigate trajectories toward antisocial problems.