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ABSTRACT: Background
Childhood interpersonal violence is linked to obesity and central adiposity in adulthood. Victimization experiences are likely to co-occur within individuals, but few studies have examined poly-victimization in the context of obesity and central adiposity.Purpose
The aim of this study is to evaluate the relationship between poly-victimization and body mass index (BMI) and waist circumference (WC) and to explore whether dysregulation of the hypothalamic-pituitary-adrenal axis, as measured by the cortisol stress response, mediates the relationship.Methods
Healthy undergraduate women were recruited for a laboratory study from an online survey that assessed six different childhood victimization experiences: physical abuse, sexual abuse, peer violence, intimate partner violence, community violence, and witnessing violence. Forty-four women were categorized as poly-victims (2-5 types of violence exposures) and 48 were controls (0 types of violence exposures). Salivary cortisol was measured before and after the Trier Social Stress Test. Cortisol stress response was analyzed by the area under the curve with respect to ground (AUCG).Results
Compared with controls, poly-victims had higher BMI (B = 2.03, p = .04) and lower cortisol AUCG (B = -6.70, p < .01), independent of covariates. Poly-victims showed blunted AUCG in response to the stress task compared with controls, independent of covariates (B = -6.70, p < .01). Bootstrapping tests of mediation showed that cortisol response was not a significant mediator of the relationship between poly-victimization and BMI. Secondary analyses among poly-victims showed that the more frequent the violence exposure the higher the BMI.Conclusions
Childhood poly-victimization is linked to higher BMI and blunted cortisol responses in young adult women. Assessment of multiple forms of childhood victimization is recommended.
SUBMITTER: Christie AJ
PROVIDER: S-EPMC6499412 | biostudies-literature | 2019 May
REPOSITORIES: biostudies-literature
Christie Aimee J AJ Matthews Karen A KA
Annals of behavioral medicine : a publication of the Society of Behavioral Medicine 20190501 6
<h4>Background</h4>Childhood interpersonal violence is linked to obesity and central adiposity in adulthood. Victimization experiences are likely to co-occur within individuals, but few studies have examined poly-victimization in the context of obesity and central adiposity.<h4>Purpose</h4>The aim of this study is to evaluate the relationship between poly-victimization and body mass index (BMI) and waist circumference (WC) and to explore whether dysregulation of the hypothalamic-pituitary-adrena ...[more]