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Childhood anxiety associated with low BMI in women with Anorexia Nervosa

Dellava, Jocilyn E., Thornton, Laura M., Hamer, Robert M., Strober, Michael, Plotnicov, Katherine, Klump, Kelly L., Brandt, Harry, Crawford, Steve, Fichter, Manfred M., Halmi, Katherine A., Jones, Ian Richard, Johnson, Craig L., Kaplan, Allan S., LaVia, Maria, Mitchell, James, Rotondo, Alessandro, Treasure, Janet, Woodside, D. Blake, Berrettini, Wade H., Kaye, Walter H. and Bulik, Cynthia M. 2010. Childhood anxiety associated with low BMI in women with Anorexia Nervosa. Behaviour Research and Therapy 48 (1) , pp. 60-67. 10.1016/j.brat.2009.09.009

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Objective Extremely low body mass index (BMI) values are associated with increased risk for death and poor long-term prognosis in individuals with anorexia nervosa (AN). The present study explores childhood personality characteristics that could be associated with the ability to attain an extremely low BMI. Methods Participants were 326 women from the Genetics of Anorexia Nervosa (GAN) Study who completed the Structured Interview for Anorexia Nervosa and Bulimic Syndromes and whose mother completed the Child Behavioral Checklist and/or Revised Dimensions of Temperament Survey. Results Children who were described as having greater fear or anxiety by their mothers attained lower BMIs during AN (p < 0.02). Path analysis in the GAN and a validation sample, Price Foundation Anorexia Nervosa Trios Study, confirmed the relation between early childhood anxiety, caloric restriction, qualitative food item restriction, excessive exercise, and low BMI. Path analysis also confirmed a relation between childhood anxiety and caloric restriction, which mediated the relation between childhood anxiety and low BMI in the GAN sample only. Conclusion Fearful or anxious behavior as a child was associated with the attainment of low BMI in AN and childhood anxiety was associated with caloric restriction. Measures of anxiety and factors associated with anxiety-proneness in childhood may index children at risk for restrictive behaviors and extremely low BMIs in AN.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: R Medicine > R Medicine (General)
R Medicine > RJ Pediatrics
Uncontrolled Keywords: Anorexia Nervosa; Anxiety; Body mass index
ISSN: 00057967
Last Modified: 04 Jun 2017 04:00

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