Anne Claire Grammer1, Marian Tanofsky-Kraff2, Natasha L Burke3, Meghan E Byrne3, Sarah J Mi1, Manuela Jaramillo3, Lisa M Shank4, Nichole R Kelly5, Monika M Stojek6, Natasha A Schvey3, Miranda M Broadney1, Sheila M Brady1, Susan Z Yanovski7, Jack A Yanovski1. 1. Section on Growth and Obesity, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), DHHS, 10 Center Drive, Bethesda, MD 20892, USA. 2. Section on Growth and Obesity, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), DHHS, 10 Center Drive, Bethesda, MD 20892, USA; Department of Medical and Clinical Psychology, Uniformed Services University of the Health Sciences (USUHS), DoD, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA. Electronic address: marian.tanofsky-kraff@usuhs.edu. 3. Section on Growth and Obesity, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), DHHS, 10 Center Drive, Bethesda, MD 20892, USA; Department of Medical and Clinical Psychology, Uniformed Services University of the Health Sciences (USUHS), DoD, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA. 4. Section on Growth and Obesity, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), DHHS, 10 Center Drive, Bethesda, MD 20892, USA; Department of Medical and Clinical Psychology, Uniformed Services University of the Health Sciences (USUHS), DoD, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine (HJF), 6720A Rockledge Drive #100, Bethesda, MD 20817, USA. 5. Counseling Psychology and Human Services, University of Oregon, 5207 University of Oregon, Eugene, OR 97403-5207, USA. 6. Department of Psychiatry and Behavioral Sciences, Emory University, 12 Executive Park Drive NE #300, Atlanta, GA 30329, USA. 7. Office of Obesity Research, Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), 10 Center Drive, Bethesda, MD 20892, USA.
Abstract
BACKGROUND: Data on the link between anxiety and body composition in youth are mixed. Yet, anxiety and disordered eating are highly correlated. One pathway between anxiety and excess body weight and fat mass may be through loss of control (LOC) eating. We examined whether LOC eating mediated the relationship between anxiety and body composition in youth with and without overweight. METHOD: Non-treatment-seeking youth (8-17 years) participated in studies examining weight and eating behaviors. Anxiety (child- and parent-report of child) and LOC eating were assessed by self-report questionnaires and interviews, respectively. Fat mass was assessed by dual-energy x-ray absorptiometry or air displacement plethysmography. Cross-sectional mediation models with bias-corrected bootstrap confidence intervals (CI) were conducted. RESULTS: 257 youth (12.91 ± 2.76 years; 52.5% female; BMI-z 0.93 ± 1.07) were studied. There was a significant indirect path between child-reported anxiety and both BMI-z (ab = .005, SE = 0.003, 95% CI = 0.001-0.01) and body fat mass (ab = 0.001, SE = 0.001, 95% CI ≤0.001-0.003) through the number of LOC episodes in the past month. No significant indirect paths through the number of LOC episodes was observed for parent-report of child anxiety on BMI-z (ab = 0.004, SE = 0.01, 95% CI = -0.01-0.03) or body fat mass (ab = 0.001, SE = 0.002, 95% CI = -0.002-0.01). No direct paths were observed between anxiety and body composition regardless of the informant. DISCUSSION: LOC eating appears to mediate the relationship of child-reported anxiety with body composition in non-treatment seeking boys and girls. Prospective data are needed to determine if anxiety promotes LOC eating that results in increased risk for excess body weight and fat gain. Published by Elsevier Ltd.
BACKGROUND: Data on the link between anxiety and body composition in youth are mixed. Yet, anxiety and disordered eating are highly correlated. One pathway between anxiety and excess body weight and fat mass may be through loss of control (LOC) eating. We examined whether LOC eating mediated the relationship between anxiety and body composition in youth with and without overweight. METHOD: Non-treatment-seeking youth (8-17 years) participated in studies examining weight and eating behaviors. Anxiety (child- and parent-report of child) and LOC eating were assessed by self-report questionnaires and interviews, respectively. Fat mass was assessed by dual-energy x-ray absorptiometry or air displacement plethysmography. Cross-sectional mediation models with bias-corrected bootstrap confidence intervals (CI) were conducted. RESULTS: 257 youth (12.91 ± 2.76 years; 52.5% female; BMI-z 0.93 ± 1.07) were studied. There was a significant indirect path between child-reported anxiety and both BMI-z (ab = .005, SE = 0.003, 95% CI = 0.001-0.01) and body fat mass (ab = 0.001, SE = 0.001, 95% CI ≤0.001-0.003) through the number of LOC episodes in the past month. No significant indirect paths through the number of LOC episodes was observed for parent-report of childanxiety on BMI-z (ab = 0.004, SE = 0.01, 95% CI = -0.01-0.03) or body fat mass (ab = 0.001, SE = 0.002, 95% CI = -0.002-0.01). No direct paths were observed between anxiety and body composition regardless of the informant. DISCUSSION: LOC eating appears to mediate the relationship of child-reported anxiety with body composition in non-treatment seeking boys and girls. Prospective data are needed to determine if anxiety promotes LOC eating that results in increased risk for excess body weight and fat gain. Published by Elsevier Ltd.
Entities:
Keywords:
Adiposity; Anxiety; Children and adolescents; Loss of control eating
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