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Tytuł:
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Childhood body mass index in adolescent-onset anorexia nervosa.
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Autorzy:
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Berkowitz, Staci A.
Witt, Ashley A.
Gillberg, Christopher
Råstam, Maria
Wentz, Elisabet
Lowe, Michael R.
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Temat:
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AGE factors in disease
ANOREXIA nervosa
ANTHROPOMETRY
CHI-squared test
CHILD development
COMPARATIVE studies
CONFIDENCE intervals
HUMAN growth
INTERVIEWING
LONGITUDINAL method
CLASSIFICATION of mental disorders
PROBABILITY theory
SCHOOL children
SELF-evaluation
STATISTICS
T-test (Statistics)
MATHEMATICAL variables
DATA analysis
EFFECT sizes (Statistics)
BODY mass index
DATA analysis software
DESCRIPTIVE statistics
ADOLESCENCE
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Źródło:
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International Journal of Eating Disorders; Nov2016, Vol. 49 Issue 11, p1002-1009, 8p, 5 Charts
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Terminy geograficzne:
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SWEDEN
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ABSTRACT Objective Although weight history is relevant in predicting eating disorder symptom severity, little is known about its role in the etiology of anorexia nervosa (AN). This study aimed to determine whether BMI or BMI trajectory differed between individuals who later developed adolescent-onset AN and a comparison group of HCs between school grades 1 through 6. Method This study was based on longitudinal data that identified 51 adolescents with AN and 51 matched HCs. Cases were identified through community screening in Sweden and included individuals born in 1969 through 1977. Measured weights and heights were retrieved and BMIs and weight trajectories of the AN and HC groups were compared using growth curve analysis. Main outcome measures included measured BMI and BMI trajectories from grades 1-6. Secondary outcomes examined included ponderal index at birth and maternal body weight. Results Individuals who later developed AN had higher BMIs than HCs between grades 1 and 6, by an average of 1.42 BMI-units. There was no difference in rate of weight gain between groups. Ponderal index at birth was higher for the AN as compared with HC group. Maternal weight did not differ significantly between groups. Discussion These findings, combined with those previously reported on the premorbid BMIs of those with bulimia nervosa, suggest that a predisposition toward elevated premorbid BMIs during childhood characterizes those who later develop anorexia or bulimia nervosa. These findings are consistent with a transdiagnostic perspective and suggest shared risk factors for AN and obesity. © 2016 Wiley Periodicals, Inc. (Int J Eat Disord 2016; 49:1002-1009) [ABSTRACT FROM AUTHOR]
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